Download TECHNICAL & SERVICE MANUAL DC INVERTER MULTI

TECHNICAL & SERVICE MANUAL
OUTDOOR UNIT : CM1972
CM2472
CM3172
FILE NO.
Destination: North America
DC INVERTER MULTI-SYSTEM AIR CONDITIONER
Capacity at 230V
Outdoor Model No.
Product Code No.
25,400 BTU/h
CM2472
1 852 330 28
19,700 BTU/h
30,600 BTU/h
CM1972
CM1972
CM3172
1 852 330 27
1 852 330 29
< Applicable Indoor Units >
●Wall
mounted type
KMS0772
KMS0972
KMS1272
KMS1872
KMS2472
NOTE
CM2472
CM3172
For details about the combination, refer to
"Unit Combination Table" in the Appendix
of this manual.
IMPORTANT
These air conditioners employ new
refrigerant R410A.
Pay special attention when
servicing the unit.
REFERENCE NO. SM700666-04
Important!
Please Read Before Starting
When Transporting
Be careful when picking up and moving the indoor and
outdoor units. Get a partner to help, and bend your knees
when lifting to reduce strain on your back. Sharp edges or thin
aluminum fins on the air conditioner can cut your fingers.
This air conditioning system meets strict safety and operating
standards. As the installer or service person, it is an
important part of your job to install or service the system so it
operates safely and efficiently.
When Installing
In a Ceiling or Wall
Make sure the ceiling/wall is strong enough to hold the unit’s
weight. It may be necessary to construct a strong wood or
metal frame to provide added support.
In a Room
Properly insulate any tubing run inside a room to prevent
"sweating" that can cause dripping and water damage to walls
and floors.
In Moist or Uneven Locations
Use a raised concrete pad or concrete blocks to provide a
solid, level foundation for the outdoor unit. This prevents
water damage and abnormal vibration.
In an Area with High Winds
Securely anchor the outdoor unit down with bolts and a metal
frame. Provide a suitable air baffle.
In a Snowy Area (for Heat Pump-type Systems)
Install the outdoor unit on a raised platform that is higher than
drifting snow. Provide snow vents.
For safe installation and trouble-free operation, you must:
Carefully read this instruction booklet before beginning.
Follow each installation or repair step exactly as shown.
Observe all local, state, and national electrical codes.
Pay close attention to all warning and caution notices given
in this manual.
This symbol refers to a hazard or
WARNING unsafe practice which can result
in severe personal injury or death.
CAUTION
This symbol refers to a hazard
or unsafe practice which can
result in personal injury or
product or property damage.
If Necessary, Get Help
These instructions are all you need for most installation
sites and maintenance conditions. If you require help for
a special problem, contact our sales/service outlet or
your certified dealer for additional instructions.
When Connecting Refrigerant Tubing
• Use the flare method for connecting tubing.
• Apply refrigerant lubricant to the matching surfaces of the
flare and union tubes before connecting them, then tighten
the nut with a torque wrench for a leak-free connection.
• Check carefully for leaks before starting the test run.
In Case of Improper Installation
The manufacturer shall in no way be responsible for
improper installation or maintenance service, including
failure to follow the instructions in this document.
SPECIAL PRECAUTIONS
WARNING
When Servicing
• Turn the power off at the main power box (mains) before
opening the unit to check or repair electrical parts and
wiring.
• Keep your fingers and clothing away from any moving parts.
• Clean up the site after you finish, remembering to check
that no metal scraps or bits of wiring have been left inside
the unit being serviced.
When Wiring
ELECTRICAL SHOCK CAN CAUSE
SEVERE PERSONAL INJURY OR DEATH.
ONLY A QUALIFIED, EXPERIENCED
ELECTRICIAN SHOULD ATTEMPT TO
WIRE THIS SYSTEM.
Others
• Do not supply power to the unit until all wiring and tubing
are completed or reconnected and checked.
• Highly dangerous electrical voltages are used in this
system. Carefully refer to the wiring diagram and these
instructions when wiring. Improper connections and
inadequate grounding can cause accidental injury or death.
• Ground the unit following local electrical codes.
• Connect all wiring tightly. Loose wiring may cause
overheating at connection points and a possible fire
hazard.
• Install a protective leakage breaker depending on the
CAUTION
• Ventilate any enclosed areas when installing or testing the
refrigeration system. Escaped refrigerant gas, on contact
with fire or heat, can produce dangerously toxic gas.
• Confirm upon completing installation that no refrigerant gas
is leaking. If escaped gas comes in contact with a stove,
gas water heater, electric room heater or other heat source,
it can produce dangerously toxic gas.
installation location (especially a damp or humid
location). If a leakage breaker is not installed, electric
shock can occur.
2
Table of Contents
Page
APPLICABLE INDOOR UNITS .....................................................................................................
1. OPERATING RANGE ...................................................................................................................
4
5
2. SPECIFICATIONS
2-1. Unit Specifications .............................................................................................................
2-2. Major Component Specifications .......................................................................................
2-3. Other Component Specifications .......................................................................................
6
12
15
3. DIMENSIONAL DATA.....................................................................................................................
16
4. REFRIGERANT FLOW DIAGRAM
4-1. Refrigerant Flow Diagram ...................................................................................................
19
5. PERFORMANCE DATA
5-1. Temperature Charts ............................................................................................................
5-2. Cooling Capacity ................................................................................................................
22
36
6. ELECTRICAL DATA
6-1. Electric Wiring Diagrams ....................................................................................................
39
7. FUNCTIONS
7-1. Explanation of Functions .....................................................................................................
7-2. Protective Functions ...........................................................................................................
42
45
8. TROUBLESHOOTING
8-1. Precautions before Performing Inspection or Repair ..........................................................
8-2. Trouble Diagnosis by Error Monitop Lamps .........................................................................
8-3. Checking the Outdoor System ............................................................................................
8-4. Trouble Diagnosis of Each Part ...........................................................................................
8-5. Trouble Diagnosis of Fan Motor...........................................................................................
47
48
49
50
54
9. REFRIGERANT R410A:
SPECIAL PRECAUTIONS WHEN SERVICING UNIT
9-1. Characteristics of New Refrigerant R410A ........................................................................
9-2. Checklist before Servicing ...................................................................................................
9-3. Tools Specifically for R410A ................................................................................................
9-4. Tubing Installation Procedures ............................................................................................
9-5. In Case of Compressor Malfunction ....................................................................................
9-6. In Case Refrigerant is Leaking ............................................................................................
9-7. Charging Additional Refrigerant ..........................................................................................
9-8. Retro-Fitting Existing Systems ............................................................................................
55
56
57
57
58
60
61
61
APPENDIX A INSTALLATION INSTRUCTIONS .............................................................................. A-1
APPENDIX B UNIT COMBINATION TABLES .................................................................................. A-2
3
APPLICABLE INDOOR UNITS
Indoor Unit
Multi-Outdoor Unit
KMS0772
KMS0972
KMS1272
KMS1872
KMS2472
3-Room
CM1972
YES
YES
YES
YES
NO
4-Room
CM2472
YES
YES
YES
YES
YES
4-Room
CM3172
YES
YES
YES
YES
YES
NOTE
The table lists the wall-mounted type of indoor units as representative models.
4
1. OPERATING RANGE
Cooling
Temperature
Indoor Air Intake Temp.
Outdoor Air Intake Temp.
Minimum
67 °F D.B. / 57 °F W.B.
67 °F D.B.
Maximum
95 °F D.B. / 71 °F W.B.
5
115 °F D.B.
2. SPECIFICATIONS
2-1. Unit Specifications
Outdoor Unit
Indoor Unit
CM1972
KMS0972 × 3
Type
3-Room Multi Outdoor Unit
Number of Connectable Indoor Units
3
Number of Operatable Indoor Units
3
Dimensions & Weight
Features
Electrical Rating
Performance
Voltage Rating
Total Capacity
Sensible Capacity
Latent Capacity
Air Circulation (High)
Available Voltage Range
Running Amperes
Power Input
Power Factor
EER
SEER
Compressor Locked Rotor Amperes
Fuse or Circuit Breaker Capacity
Control
Fan Speeds
Compressor
Refrigerant / Amount charged at shipment
Refrigerant Control
Operation Sound (High) Cool
Refrigerant Tubing Connections
Max. allowable tubing length per unit
Refrigerant
Narrow tube
Tube Diameter
Wide tube
Unit Dimensions
Height × Width × Depth
Package Dimensions
Height × Width × Depth
Weight
Net
Shipping
Shipping Volume
< 230V >
230V Single-Phase 60Hz
Cooling
19,700 ( 9,800 to 19,700 )
5.80 ( 2.90 to 5.80 )
16,800
2,900
1,707 (2,900)
187 to 253
7.0
1,570
98
12.5
16.5
13.0
20
BTU/h
kW
BTU/h
BTU/h
ft3/min (m3/h)
V
A
W
%
BTU/h/W
BTU/Wh
A
A
Outdoor Unit
Microprocessor
Auto (Hi, Me, Lo)
DC Twin Rotary (Inverter)
R410A / 6.17 (2,800)
Electric Expansion Valve
50
Flare Type
82 (25)
1/4 (6.35) × 3
3/8 (9.52) × 3
Ibs (g)
dB-A
ft (m)
inch (mm)
inch (mm)
Outdoor Unit
29-1/8 × 35-7/16 × 12-19/32
(740 × 900 × 320)
33-27/32 × 40-5/8 × 16-1/4
(860 × 1,032 × 413)
138.9 (63.0)
147.7 (67.0)
12.71 (0.36)
inch
(mm)
inch
(mm)
Ibs (kg)
Ibs (kg)
cu.ft (m3)
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
Remarks:
1. The values shown in performance section and electrical rating section above are based on the following unit combination.
For other combination unit, please refer to the "Unit Combination Tables" in this manual.
Indoor Unit : KMS0972 3units
Outdoor Unit : CM1972 1unit
2. Rating conditions are: Cooling : Indoor air temp. 80°F D.B./ 67°F W.B.
Outdoor air temp. 95°F D.B./ 75°F W.B.
6
Outdoor Unit
Indoor Unit
CM1972
KMS0972 × 3
Type
3-Room Multi Outdoor Unit
Number of Connectable Indoor Units
3
Number of Operatable Indoor Units
3
Dimensions & Weight
Features
Electrical Rating
Performance
Voltage Rating
Total Capacity
Sensible Capacity
Latent Capacity
Air Circulation (High)
Available Voltage Range
Running Amperes
Power Input
Power Factor
EER
SEER
Compressor Locked Rotor Amperes
Fuse or Circuit Breaker Capacity
Control
Fan Speeds
Compressor
Refrigerant / Amount charged at shipment
Refrigerant Control
Operation Sound (High) Cool
Refrigerant Tubing Connections
Max. allowable tubing length per unit
Refrigerant
Narrow tube
Tube Diameter
Wide tube
Unit Dimensions
Height × Width × Depth
Package Dimensions
Height × Width × Depth
Weight
Net
Shipping
Shipping Volume
< 208V >
208V Single-Phase 60Hz
Cooling
19,700 ( 9,800 to 19,700 )
5.80 ( 2.90 to 5.80 )
16,800
2,900
1,707 (2,900)
187 to 253
7.7
1,570
98
12.5
16.5
13.0
20
BTU/h
kW
BTU/h
BTU/h
ft3/min (m3/h)
V
A
W
%
BTU/h/W
BTU/Wh
A
A
Outdoor Unit
Microprocessor
Auto (Hi, Me, Lo)
DC Twin Rotary (Inverter)
R410A / 6.17 (2,800)
Electric Expansion Valve
50
Flare Type
82 (25)
1/4 (6.35) × 3
3/8 (9.52) × 3
Ibs (g)
dB-A
ft (m)
inch (mm)
inch (mm)
Outdoor Unit
29-1/8 × 35-7/16 × 12-19/32
(740 × 900 × 320)
33-27/32 × 40-5/8 × 16-1/4
(860 × 1,032 × 413)
138.9 (63.0)
147.7 (67.0)
12.71 (0.36)
inch
(mm)
inch
(mm)
Ibs (kg)
Ibs (kg)
cu.ft (m3)
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
Remarks:
1. The values shown in performance section and electrical rating section above are based on the following unit combination.
For other combination unit, please refer to the "Unit Combination Tables" in this manual.
Indoor Unit : KMS0972 3units
Outdoor Unit : CM1972 1unit
2. Rating conditions are: Cooling : Indoor air temp. 80°F D.B./ 67°F W.B.
Outdoor air temp. 95°F D.B./ 75°F W.B.
7
Outdoor Unit
Indoor Unit
CM2472
KMS0972 × 3
Type
4-Room Multi Outdoor Unit
Number of Connectable Indoor Units
4
Number of Operatable Indoor Units
3
Dimensions & Weight
Features
Electrical Rating
Performance
Voltage Rating
Total Capacity
Sensible Capacity
Latent Capacity
Air Circulation (High)
Available Voltage Range
Running Amperes
Power Input
Power Factor
EER
SEER
Compressor Locked Rotor Amperes
Fuse or Circuit Breaker Capacity
Control
Fan Speeds
Compressor
Refrigerant / Amount charged at shipment
Refrigerant Control
Operation Sound (High) Cool
Refrigerant Tubing Connections
Max. allowable tubing length per unit
Refrigerant
Narrow tube
Tube Diameter
Wide tube
Unit Dimensions
Height × Width × Depth
Package Dimensions
Height × Width × Depth
Weight
Net
Shipping
Shipping Volume
< 230V >
230V Single-Phase 60Hz
Cooling
25,400 ( 9,800 to 25,400 )
7.50 ( 2.90 to 7.50 )
21,400
4,000
1,707 (2,900)
187 to 253
11.3
2,560
98
9.9
16.2
13.0
20
BTU/h
kW
BTU/h
BTU/h
ft3/min (m3/h)
V
A
W
%
BTU/h/W
BTU/Wh
A
A
Outdoor Unit
Microprocessor
Auto (Hi, Me, Lo)
DC Twin Rotary (Inverter)
R410A / 6.17 (2,800)
Electric Expansion Valve
50
Flare Type
82 (25)
1/4 (6.35) × 4
3/8 (9.52) × 3 + 1/2 (12.7) × 1
Ibs (g)
dB-A
ft (m)
inch (mm)
inch (mm)
Outdoor Unit
29-1/8 × 35-7/16 × 12-19/32
(740 × 900 × 320)
33-27/32 × 40-5/8 × 16-1/4
(860 × 1,032 × 413)
138.9 (63.0)
147.7 (67.0)
12.71 (0.36)
inch
(mm)
inch
(mm)
Ibs (kg)
Ibs (kg)
cu.ft (m3)
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
Remarks:
1. The values shown in performance section and electrical rating section above are based on the following unit combination.
For other combination unit, please refer to the "Unit Combination Tables" in this manual.
Indoor Unit : KMS0972 3units
Outdoor Unit : CM2472 1unit
2. Rating conditions are: Cooling : Indoor air temp. 80°F D.B./ 67°F W.B.
Outdoor air temp. 95°F D.B./ 75°F W.B.
8
Outdoor Unit
Indoor Unit
CM2472
KMS0972 × 3
Type
4-Room Multi Outdoor Unit
Number of Connectable Indoor Units
4
Number of Operatable Indoor Units
3
Dimensions & Weight
Features
Electrical Rating
Performance
Voltage Rating
Total Capacity
Sensible Capacity
Latent Capacity
Air Circulation (High)
Available Voltage Range
Running Amperes
Power Input
Power Factor
EER
SEER
Compressor Locked Rotor Amperes
Fuse or Circuit Breaker Capacity
Control
Fan Speeds
Compressor
Refrigerant / Amount charged at shipment
Refrigerant Control
Operation Sound (High) Cool
Refrigerant Tubing Connections
Max. allowable tubing length per unit
Refrigerant
Narrow tube
Tube Diameter
Wide tube
Unit Dimensions
Height × Width × Depth
Package Dimensions
Height × Width × Depth
Weight
Net
Shipping
Shipping Volume
< 208V >
208V Single-Phase 60Hz
Cooling
24,400 ( 9,800 to 24,400 )
7.20 ( 2.90 to 7.20 )
20,600
3,800
1,707 (2,900)
187 to 253
12.5
2,560
98
9.5
16.2
13.0
20
BTU/h
kW
BTU/h
BTU/h
ft3/min (m3/h)
V
A
W
%
BTU/h/W
BTU/Wh
A
A
Outdoor Unit
Microprocessor
Auto (Hi, Me, Lo)
DC Twin Rotary (Inverter)
R410A / 6.17 (2,800)
Electric Expansion Valve
50
Flare Type
82 (25)
1/4 (6.35) × 4
3/8 (9.52) × 3 + 1/2 (12.7) × 1
Ibs (g)
dB-A
ft (m)
inch (mm)
inch (mm)
Outdoor Unit
29-1/8 × 35-7/16 × 12-19/32
(740 × 900 × 320)
33-27/32 × 40-5/8 × 16-1/4
(860 × 1,032 × 413)
138.9 (63.0)
147.7 (67.0)
12.71 (0.36)
inch
(mm)
inch
(mm)
Ibs (kg)
Ibs (kg)
cu.ft (m3)
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
Remarks:
1. The values shown in performance section and electrical rating section above are based on the following unit combination.
For other combination unit, please refer to the "Unit Combination Tables" in this manual.
Indoor Unit : KMS0972 3units
Outdoor Unit : CM2472 1unit
2. Rating conditions are: Cooling : Indoor air temp. 80°F D.B./ 67°F W.B.
Outdoor air temp. 95°F D.B./ 75°F W.B.
9
Outdoor Unit
Indoor Unit
CM3172
KMS0972 × 4
Type
4-Room Multi Outdoor Unit
Number of Connectable Indoor Units
4
Number of Operatable Indoor Units
4
Dimensions & Weight
Features
Electrical Rating
Performance
Voltage Rating
Total Capacity
Sensible Capacity
Latent Capacity
Air Circulation (High)
Available Voltage Range
Running Amperes
Power Input
Power Factor
EER
SEER
Compressor Locked Rotor Amperes
Fuse or Circuit Breaker Capacity
Control
Fan Speeds
Compressor
Refrigerant / Amount charged at shipment
Refrigerant Control
Operation Sound (High) Cool
Refrigerant Tubing Connections
Max. allowable tubing length per unit
Refrigerant
Narrow tube
Tube Diameter
Wide tube
Unit Dimensions
Height × Width × Depth
Package Dimensions
Height × Width × Depth
Weight
Net
Shipping
Shipping Volume
< 230V >
230V Single-Phase 60Hz
Cooling
30,600 ( 9,800 to 30,600 )
9.00 ( 2.90 to 9.00 )
25,800
4,800
1,942 (3,300)
187 to 253
12.3
2,800
99
10.9
17.6
17.0
20
BTU/h
kW
BTU/h
BTU/h
ft3/min (m3/h)
V
A
W
%
BTU/h/W
BTU/Wh
A
A
Outdoor Unit
Microprocessor
Auto (Hi, Me, Lo)
DC Twin Rotary (Inverter)
R410A / 8.38 (3,800)
Electric Expansion Valve
53
Flare Type
100 (30.5)
1/4 (6.35) × 4
3/8 (9.52) × 2 + 1/2 (12.7) × 2
Ibs (g)
dB-A
ft (m)
inch (mm)
inch (mm)
Outdoor Unit
35-1/32 × 35-7/16 × 12-19/32
(890 × 900 × 320)
39-3/4 × 40-5/8 × 16-1/4
(1,010 × 1,032 × 413)
174.2 (79.0)
183.0 (83.0)
15.18 (0.43)
inch
(mm)
inch
(mm)
Ibs (kg)
Ibs (kg)
cu.ft (m3)
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
Remarks:
1. The values shown in performance section and electrical rating section above are based on the following unit combination.
For other combination unit, please refer to the "Unit Combination Tables" in this manual.
Indoor Unit : KMS0972 4units
Outdoor Unit : CM3172 1unit
2. Rating conditions are: Cooling : Indoor air temp. 80°F D.B./ 67°F W.B.
Outdoor air temp. 95°F D.B./ 75°F W.B.
10
Outdoor Unit
Indoor Unit
CM3172
KMS0972 × 4
Type
4-Room Multi Outdoor Unit
Number of Connectable Indoor Units
4
Number of Operatable Indoor Units
4
Dimensions & Weight
Features
Electrical Rating
Performance
Voltage Rating
Total Capacity
Sensible Capacity
Latent Capacity
Air Circulation (High)
Available Voltage Range
Running Amperes
Power Input
Power Factor
EER
SEER
Compressor Locked Rotor Amperes
Fuse or Circuit Breaker Capacity
Control
Fan Speeds
Compressor
Refrigerant / Amount charged at shipment
Refrigerant Control
Operation Sound (High) Cool
Refrigerant Tubing Connections
Max. allowable tubing length per unit
Refrigerant
Narrow tube
Tube Diameter
Wide tube
Unit Dimensions
Height × Width × Depth
Package Dimensions
Height × Width × Depth
Weight
Net
Shipping
Shipping Volume
< 208V >
208V Single-Phase 60Hz
Cooling
28,600 ( 9,800 to 28,600 )
8.40 ( 2.90 to 8.40 )
24,200
4,400
1,942 (3,300)
187 to 253
13.6
2,800
99
10.2
17.6
17.0
20
BTU/h
kW
BTU/h
BTU/h
ft3/min (m3/h)
V
A
W
%
BTU/h/W
BTU/Wh
A
A
Outdoor Unit
Microprocessor
Auto (Hi, Me, Lo)
DC Twin Rotary (Inverter)
R410A / 8.38 (3,800)
Electric Expansion Valve
53
Flare Type
100 (30.5)
1/4 (6.35) × 4
3/8 (9.52) × 2 + 1/2 (12.7) × 2
Ibs (g)
dB-A
ft (m)
inch (mm)
inch (mm)
Outdoor Unit
35-1/32 × 35-7/16 × 12-19/32
(890 × 900 × 320)
39-3/4 × 40-5/8 × 16-1/4
(1,010 × 1,032 × 413)
174.2 (79.0)
183.0 (83.0)
15.18 (0.43)
inch
(mm)
inch
(mm)
Ibs (kg)
Ibs (kg)
cu.ft (m3)
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
Remarks:
1. The values shown in performance section and electrical rating section above are based on the following unit combination.
For other combination unit, please refer to the "Unit Combination Tables" in this manual.
Indoor Unit : KMS0972 4units
Outdoor Unit : CM3172 1unit
2. Rating conditions are: Cooling : Indoor air temp. 80°F D.B./ 67°F W.B.
Outdoor air temp. 95°F D.B./ 75°F W.B.
11
2-2. Major Component Specifications
2-2-1. Outdoor Unit
CM1972
Outdoor Unit
Control PCB
Part No.
Controls
Control Circuit Fuse
CB-CM1972
Microprocessor
250V 25A
Compressor
Type
Compressor Model / Nominal Output
Compressor Oil ... Amount
Pints (cc)
Coil Resistance (Ambient Temp. 68 °F (20 °C)) Ohm
DC Twin Rotary (Hermetic)
5KD240XAB21 / 1,700W
FV50S ... 1.91 (900)
U - V : 0.720
V - W : 0.708
W - U : 0.726
Safety Device
CT (Peak current cut-off control)
Compressor Discharge Temp. Control
Yes
Yes
Yes
CS-7LN115
Open : 239 °F (115 °C), Close : 212 °F (100 °C)
-
Operation cut-off control in abnormal ambient Temp.
Overload Relay
Run Capacitor
Crankcase Heater
Fan
Type
Q'ty ... Dia.
Model
Operation Temp.
Micro F
VAC
Propeller
1 ... D18-1/8 (D460)
inch (mm)
Fan Motor
Type
Model ... Q'ty
No. of Poles
Rough Measure RPM (Cool)
Nominal Output
Coil Resistance
(Ambient Temp. 68 °F (20 °C))
Safety Device
Type
Over-Current Protection
Over-Heat Protection
Run Capacitor
DC Motor
SIC-71FW-D490-1 ... 1
8
750
90
W
Ohm
-
Micro F
VAC
Internal Controller
Yes
Yes
-
ft2 (m2)
Aluminum Plate Fin / Copper Tube
2
18.1
6.40 (0.595)
Heat Exchanger Coil
Coil
Rows
Fins per inch
Face Area
External Finish
Acrylic baked-on enamel finish
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
12
CM2472
Outdoor Unit
Control PCB
Part No.
Controls
Control Circuit Fuse
CB-CM2572
Microprocessor
250V 25A
Compressor
Type
Compressor Model / Nominal Output
Compressor Oil ... Amount
Pints (cc)
Coil Resistance (Ambient Temp. 68 °F (20 °C)) Ohm
DC Twin Rotary (Hermetic)
5KD240XAB21 / 1,700W
FV50S ... 1.91 (900)
U - V : 0.720
V - W : 0.708
W - U : 0.726
Safety Device
CT (Peak current cut-off control)
Compressor Discharge Temp. Control
Yes
Yes
Yes
CS-7LN115
Open : 239 °F (115 °C), Close : 212 °F (100 °C)
-
Operation cut-off control in abnormal ambient Temp.
Overload Relay
Run Capacitor
Crankcase Heater
Fan
Type
Q'ty ... Dia.
Model
Operation Temp.
Micro F
VAC
Propeller
1 ... D18-1/8 (D460)
inch (mm)
Fan Motor
Type
Model ... Q'ty
No. of Poles
Rough Measure RPM (Cool)
Nominal Output
Coil Resistance
(Ambient Temp. 68 °F (20 °C))
Safety Device
Type
Over-Current Protection
Over-Heat Protection
Run Capacitor
DC Motor
SIC-71FW-D490-1 ... 1
8
750
90
W
Ohm
-
Micro F
VAC
Internal Controller
Yes
Yes
-
ft2 (m2)
Aluminum Plate Fin / Copper Tube
2
18.1
6.40 (0.595)
Heat Exchanger Coil
Coil
Rows
Fins per inch
Face Area
External Finish
Acrylic baked-on enamel finish
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
13
CM3172
Outdoor Unit
Control PCB
Part No.
Controls
Control Circuit Fuse
CB-CM3172
Microprocessor
250V 25A
Compressor
Type
Compressor Model / Nominal Output
Compressor Oil ... Amount
Pints (cc)
Coil Resistance (Ambient Temp. 68 °F (20 °C)) Ohm
DC Twin Rotary (Hermetic)
5JD420XAB22 / 3,000W
FV50S ... 2.55 (1,200)
U - V : 0.435
V - W : 0.441
W - U : 0.452
Safety Device
CT (Peak current cut-off control)
Compressor Discharge Temp. Control
Yes
Yes
Yes
CS-7LN115
Open : 239 °F (115 °C), Close : 212 °F (100 °C)
-
Operation cut-off control in abnormal ambient Temp.
Overload Relay
Run Capacitor
Crankcase Heater
Fan
Type
Q'ty ... Dia.
Model
Operation Temp.
Micro F
VAC
Propeller
1 ... D18-1/8 (D460)
inch (mm)
Fan Motor
Type
Model ... Q'ty
No. of Poles
Rough Measure RPM (Cool)
Nominal Output
Coil Resistance
(Ambient Temp. 68 °F (20 °C))
Safety Device
Type
Over-Current Protection
Over-Heat Protection
Run Capacitor
DC Motor
SIC-71FW-D490-1 ... 1
8
800
90
W
Ohm
-
Micro F
VAC
Internal Controller
Yes
Yes
-
ft2 (m2)
Aluminum Plate Fin / Copper Tube
2
18.1
7.75 (0.72)
Heat Exchanger Coil
Coil
Rows
Fins per inch
Face Area
External Finish
Acrylic baked-on enamel finish
DATA SUBJECT TO CHANGE WITHOUT NOTICE.
14
2-3. Other Component Specifications
Quantity of Sensor
Model No.
of sensor
CM1972
CM2472
CM3172
Outdoor air temp sensor
TKS295B
1
1
1
Outdoor heat exchanger sensor
TKS292B
1
1
1
AW / AN sensor
TKS292B
1/1
1/1
1/1
BW / BN sensor
TKS292B
1/1
1/1
1/1
CW / CN sensor
TKS292B
1/1
1/1
1/1
DW / DN sensor
TKS292B
0
1/1
1/1
Sensor Name
Resistance (k ohm)
40
35
30
25
20
15
10
5
0
Compressor temp sensor
Quantity of Sensor
Model No.
of sensor
CM1972
CM2472
CM3172
TKS293B
1
1
1
200
Resistance (k ohm)
Sensor Name
-4 5
14 23 32 41 50 59 68
(-20)(-15)(-10) (-5) (0) (5) (10) (15) (20)
Temperature F ( C)
180
160
140
120
100
80
60
40
20
0
32 50 68 86 104 122 140 158 176 194
(0) (10) (20) (30) (40) (50) (60) (70) (80) (90)
Temperature F ( C)
15
3. DIMENSIONAL DATA
Outdoor Unit CM1972
15/32
13-19/32
12-19/32(320)
2-15/16
Wide tube service valve
dia.3/8" (9.52) × 3
1-13/16
4-7/16 2-15/16 2-3/4
5-29/32 2-27/32 2-3/4
29-1/8(740)
Narrow tube service valve
dia.1/4" (6.35) × 3
23/32
35-7/16(900)
14-17/32
2-I
D
23
/32
ID:
1-3/8
11-17/32
5-11/32
:15
/16
23-15/16
2-1/32
4-1/2
2-1/16
Unit: inch(mm)
16
CM2472
2-15/16
Wide tube service valve
dia.3/8" (9.52) × 3
Narrow tube service valve
dia.1/4" (6.35) × 4
1-13/16
Wide tube service valve
dia.1/2" (12.70) × 1
4-7/16 2-15/16 2-3/4 2-3/4
5-29/32 2-27/32 2-3/4 2-3/4
29-1/8(740)
35-7/16(900)
13-19/32
12-19/32(320)
15/32
14-17/32
23
/32
ID:
1-3/8
11-17/32
5-11/32
2-I
D:
15
/16
23-15/16
23/32
Outdoor Unit
2-1/32
4-1/2
2-1/16
2-13/32
Unit: inch(mm)
17
CM3172
15/32
13-19/32
12-19/32(320)
2-15/16
Wide tube service valve
dia.3/8" (9.52) × 2
Narrow tube service valve
dia.1/4" (6.35) × 4
35-1/32(890)
1-13/16
4-7/16 2-15/16 2-3/4 2-3/4
2-7/8 2-3/4 2-3/4
Wide tube service valve
dia.1/2" (12.70) × 2
5-29/32
35-7/16(900)
14-17/32
2-I
D
23
/32
ID:
1-3/8
11-17/32
5-11/32
:15
/16
23-15/16
23/32
Outdoor Unit
2-1/32
4-1/2
2-1/16
2-13/32
Unit: inch(mm)
18
4. REFRIGERANT FLOW DIAGRAM
4-1. Refrigerant Flow Diagram
Outdoor Unit CM1972
Outdoor unit
O.D.3/8"
O.D.1/4"
O.D.1/4"
O.D.1/4"
Main
accumulator
AW
O.D.3/8"
Narrow tube
Sub
accumulator
BW
High pressure
switch
H.P.
Header
Service valve on
narrow tube
CN
Heat exchanger
Wide tube
O.D.3/8"
Service valve on
wide tube
CW
Compressor
Indoor unit
Electric
expansion
valve
M
M
BN
M
AN
Strainer
Header
Cooling cycle
Insulation of Refrigerant Tubing
IMPORTANT
Because capillary tubing is used in the outdoor unit, both the
wide and narrow tubes of this air conditioner become cold. To
prevent heat loss and wet floors due to dripping of
condensation, both tubes must be well insulated with a
proper insulation material. The thickness of the insulation
should be a min.5/16"(8 mm).
CAUTION
After a tube has been insulated,
never try to bend it into a narrow
curve because it can cause the tube
to break or crack.
19
Insulation
Thickness:
Min.5/16"(8 mm)
Wide tube
Thickness:
Min.5/16"(8 mm)
Narrow tube
Outdoor Unit CM2472
Outdoor unit
O.D.3/8"
BW
O.D.3/8"
O.D.1/4"
Main
accumulator
High pressure
switch
H.P.
AW
O.D.1/2"
Narrow tube
Sub
accumulator
CW
Header
Service valve on
narrow tube
DN
O.D.1/4"
O.D.1/4"
O.D.1/4"
Heat exchanger
Wide tube
O.D.3/8"
Service valve on
wide tube
DW
Compressor
Indoor unit
Electric
expansion
valve
M
M
CN
M
BN
M
AN
Strainer
Header
Cooling cycle
Insulation of Refrigerant Tubing
IMPORTANT
Because capillary tubing is used in the outdoor unit, both the
wide and narrow tubes of this air conditioner become cold. To
prevent heat loss and wet floors due to dripping of
condensation, both tubes must be well insulated with a
proper insulation material. The thickness of the insulation
should be a min.5/16"(8 mm).
CAUTION
After a tube has been insulated,
never try to bend it into a narrow
curve because it can cause the tube
to break or crack.
20
Insulation
Thickness:
Min.5/16"(8 mm)
Wide tube
Thickness:
Min.5/16"(8 mm)
Narrow tube
Outdoor Unit CM3172
Outdoor unit
O.D.3/8"
High pressure
switch
H.P.
AW
O.D.1/2"
O.D.1/4"
Main
accumulator
BW
O.D.1/2"
Narrow tube
Sub
accumulator
CW
Header
Electric
expansion
valve
Service valve on
narrow tube
DN
O.D.1/4"
O.D.1/4"
O.D.1/4"
Heat exchanger
Wide tube
O.D.3/8"
Service valve on
wide tube
DW
Compressor
Indoor unit
M
M
CN
M
BN
M
AN
Strainer
Header
Cooling cycle
Insulation of Refrigerant Tubing
IMPORTANT
Because capillary tubing is used in the outdoor unit, both the
wide and narrow tubes of this air conditioner become cold. To
prevent heat loss and wet floors due to dripping of
condensation, both tubes must be well insulated with a
proper insulation material. The thickness of the insulation
should be a min.5/16"(8 mm).
CAUTION
After a tube has been insulated,
never try to bend it into a narrow
curve because it can cause the tube
to break or crack.
21
Insulation
Thickness:
Min.5/16"(8 mm)
Wide tube
Thickness:
Min.5/16"(8 mm)
Narrow tube
5. PERFORMANCE DATA
5-1. Temperature Charts
5-1-1. Temperature Charts (CM1972)
Outdoor Unit CM1972
Indoor Unit KMS0772 × 1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan)
(230V, 60Hz)
Low pressure at wide tube service valve
psig (MPaG)
(1) Low pressure performance chart
188
(1.3)
Lo fan
174
(1.2)
Hi fan
oor
Ind
air
HH fan
tem
°F
6
p. 8
°C)
(30
)
7°C
F (2
80°
)
4°C
F (2
75°
160
(1.1)
146
(1.0) 77
(25)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
(2) Operating current performance chart
Lo fan
Operating current (A)
5
Hi fan
HH fan
4
)
°F (30°C
86
ir temp.
Indoor a
)
°C
80°F (27
°C)
75°F (24
3
2
77
(25)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
Indoor discharge air temperature °F (°C)
(3) Indoor discharge air performance chart
68.0(20)
Lo fan
Hi fan
HH fan
64.4(18)
60.8(16)
°C)
°F (30
mp. 86
air te
Indoor
57.2(14)
7°C)
80°F (2
4°C)
75°F (2
53.6(12)
50.0(10)
46.4( 8)
77
(25)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
NOTE
• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on
the indoor unit type.
• Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value.
(In this case, be sure to stop all the indoor units where performance is not being checked.)
• The performance is for a tubing length of 24.6t (7.5m). If the tubing length is different, the performance chart will vary.
22
Outdoor Unit CM1972
Indoor Unit KMS0972 × 1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan)
(230V, 60Hz)
Low pressure at wide tube service valve
psig (MPaG)
(1) Low pressure performance chart
188
(1.3)
Lo fan
174
(1.2)
HH fan
6°F
mp. 8
r air te
Indoo
)
(27°C
80°F
)
C
°
4
(2
75°F
160
(1.1)
146
(1.0) 77
(25)
Hi fan
(30°C
)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
(2) Operating current performance chart
Lo fan
Operating current (A)
6
Hi fan
HH fan
5
ir t
or a
)
Indo
7°C
F (2
80°
C)
°
4
F (2
75°
4
3
6°F
.8
emp
77
(25)
C)
(30°
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
Indoor discharge air temperature °F (°C)
(3) Indoor discharge air performance chart
68.0(20)
Lo fan
Hi fan
HH fan
64.4(18)
60.8(16)
57.2(14)
air
Indoor
°C)
6°F (30
temp. 8
7°C)
53.6(12)
80°F (2
50.0(10)
75°F (2
46.4( 8)
77
(25)
4°C)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
NOTE
• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on
the indoor unit type.
• Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value.
(In this case, be sure to stop all the indoor units where performance is not being checked.)
• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.
23
Outdoor Unit CM1972
Indoor Unit KMS1272 × 1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan)
(230V, 60Hz)
Low pressure at wide tube service valve
psig (MPaG)
(1) Low pressure performance chart
174
(1.2)
Lo fan
Hi fan
HH fan
°C)
°F (30
p. 86
air tem
Indoor
)
C
°
7
80°F (2
)
(24°C
75°F
160
(1.1)
146
(1.0)
132
(0.9) 77
(25)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
(2) Operating current performance chart
Lo fan
Operating current (A)
6
5
HH fan
0°C)
°F (3
p. 86
ir tem
or a
Indo
C)
(27°
80°F
C)
°
4
(2
75°F
4
3
Hi fan
77
(25)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
Indoor discharge air temperature °F (°C)
(3) Indoor discharge air performance chart
68.0(20)
Lo fan
Hi fan
HH fan
64.4(18)
60.8(16)
57.2(14)
53.6(12)
50.0(10)
46.4( 8)
77
(25)
)
°F (30°C
r temp. 86
Indoor ai
°C)
80°F (27
4°C)
75°F (2
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
NOTE
• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on
the indoor unit type.
• Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value.
(In this case, be sure to stop all the indoor units where performance is not being checked.)
• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.
24
Outdoor Unit CM1972
Indoor Unit KMS1872 × 1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan)
(230V, 60Hz)
Low pressure at wide tube service valve
psig (MPaG)
(1) Low pressure performance chart
174
(1.2)
Lo fan
HH fan
Hi fan
air
door
In
160
(1.1)
F
)
(30°C
. 86°
temp
)
(27°C
80°F
75°F
C)
(24°
146
(1.0)
132
(0.9) 77
(25)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
(2) Operating current performance chart
Operating current (A)
8
Lo fan
Hi fan
HH fan
7
6
or a
Indo
80°F
C)
(27°
)
4°C
F (2
75°
5
77
(25)
)
30°C
°F (
. 86
mp
ir te
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
Indoor discharge air temperature °F (°C)
(3) Indoor discharge air performance chart
68.0(20)
Lo fan
Hi fan
HH fan
64.4(18)
60.8(16)
57.2(14)
53.6(12)
50.0(10)
46.4( 8)
77
(25)
Indoor air
temp. 86°F
(30°C)
)
80°F (27°C
)
75°F (24°C
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
NOTE
• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on
the indoor unit type.
• Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value.
(In this case, be sure to stop all the indoor units where performance is not being checked.)
• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.
25
5-1-2. Temperature Charts (CM2472)
Outdoor Unit CM2472
Indoor Unit KMS0772 × 1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan)
(230V, 60Hz)
Low pressure at wide tube service valve
psig (MPaG)
(1) Low pressure performance chart
188
(1.3)
Lo fan
Hi fan
oor
174
(1.2)
Ind
HH fan
air
)
0°C
(3
°F
. 86
p
tem
°C)
(27
F
80°
C)
24°
F(
75°
160
(1.1)
146
(1.0) 77
(25)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
(2) Operating current performance chart
Lo fan
Operating current (A)
5
Hi fan
HH fan
4
86°F
ir temp.
Indoor a
°C)
7
(2
°F
80
4°C)
75°F (2
3
2
77
(25)
(30°C)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
Indoor discharge air temperature °F (°C)
(3) Indoor discharge air performance chart
68.0(20)
Lo fan
Hi fan
64.4(18)
HH fan
60.8(16)
Indoor
57.2(14)
p. 86°F
air tem
(30°C)
7°C)
80°F (2
4°C)
75°F (2
53.6(12)
50.0(10)
46.4( 8)
77
(25)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
NOTE
• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on
the indoor unit type.
• Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value.
(In this case, be sure to stop all the indoor units where performance is not being checked.)
• The performance is for a tubing length of 24.6t (7.5m). If the tubing length is different, the performance chart will vary.
26
Outdoor Unit CM2472
Indoor Unit KMS0972 × 1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan)
(230V, 60Hz)
Low pressure at wide tube service valve
psig (MPaG)
(1) Low pressure performance chart
188
(1.3)
Lo fan
HH fan
0°C)
6°F (3
174
(1.2)
mp. 8
r air te
Indoo
)
(27°C
80°F
°C)
4
2
(
75°F
160
(1.1)
146
(1.0) 77
(25)
Hi fan
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
(2) Operating current performance chart
Lo fan
Operating current (A)
6
Hi fan
HH fan
5
ir t
or a
Indo
C)
(27°
80°F
°C)
4
F (2
75°
4
3
6°F
.8
emp
77
(25)
C)
(30°
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
Indoor discharge air temperature °F (°C)
(3) Indoor discharge air performance chart
68.0(20)
Lo fan
Hi fan
HH fan
64.4(18)
60.8(16)
57.2(14)
. 86°F
ir temp
a
Indoor
(30°C)
7°C)
53.6(12)
80°F (2
50.0(10)
75°F (2
46.4( 8)
77
(25)
4°C)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
NOTE
• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on
the indoor unit type.
• Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value.
(In this case, be sure to stop all the indoor units where performance is not being checked.)
• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.
27
Outdoor Unit CM2472
Indoor Unit KMS1272 × 1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan)
(230V, 60Hz)
Low pressure at wide tube service valve
psig (MPaG)
(1) Low pressure performance chart
174
(1.2)
Lo fan
Hi fan
HH fan
°C)
°F (30
p. 86
air tem
Indoor
)
C
°
7
80°F (2
)
(24°C
75°F
160
(1.1)
146
(1.0)
132
(0.9) 77
(25)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
(2) Operating current performance chart
Lo fan
Operating current (A)
6
Hi fan
HH fan
5
ir
or a
Indo
C)
(27°
80°F
C)
(24°
75°F
4
3
77
(25)
)
0°C
°F (3
. 86
temp
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
Indoor discharge air temperature °F (°C)
(3) Indoor discharge air performance chart
68.0(20)
Lo fan
Hi fan
HH fan
64.4(18)
60.8(16)
57.2(14)
53.6(12)
50.0(10)
46.4( 8)
77
(25)
ir temp.
Indoor a
0°C)
86°F (3
7°C)
80°F (2
4°C)
75°F (2
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
NOTE
• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on
the indoor unit type.
• Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value.
(In this case, be sure to stop all the indoor units where performance is not being checked.)
• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.
28
Outdoor Unit CM2472
Indoor Unit KMS1872 × 1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan)
(230V, 60Hz)
Low pressure at wide tube service valve
psig (MPaG)
(1) Low pressure performance chart
174
(1.2)
Lo fan
HH fan
Hi fan
°
p. 86
ir tem
or a
Indo
160
(1.1)
80°F
75°F
°C)
F (30
C)
(27°
C)
(24°
146
(1.0)
132
(0.9) 77
(25)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
(2) Operating current performance chart
Operating current (A)
8
Lo fan
Hi fan
HH fan
7
ir t
or a
Indo
6
)
)
4°C
F (2
75°
5
77
(25)
°C)
(30
7°C
F (2
80°
6°F
.8
emp
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
Indoor discharge air temperature °F (°C)
(3) Indoor discharge air performance chart
68.0(20)
Lo fan
Hi fan
HH fan
64.4(18)
60.8(16)
57.2(14)
53.6(12)
50.0(10)
46.4( 8)
77
(25)
0°C)
mp. 86°F (3
Indoor air te
80°F (27°C
)
C)
75°F (24°
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
NOTE
• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on
the indoor unit type.
• Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value.
(In this case, be sure to stop all the indoor units where performance is not being checked.)
• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.
29
Outdoor Unit CM2472
Indoor Unit KMS2472 × 1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan)
(230V, 60Hz)
Low pressure at wide tube service valve
psig (MPaG)
(1) Low pressure performance chart
174
(1.2)
Lo fan
Hi fan
HH fan
Indoor
160
(1.1)
p. 86°F
air tem
)
(30°C
7°C)
80°F (2
75°F
)
(24°C
146
(1.0)
132
(0.9) 77
(25)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
(2) Operating current performance chart
Operating current (A)
9
Lo fan
HH fan
Hi fan
6°F
p. 8
tem
air
oor °C)
d
n
I
27
F(
80°
C)
24°
F(
75°
8
7
C)
30°
(
6
77
(25)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
Indoor discharge air temperature °F (°C)
(3) Indoor discharge air performance chart
68.0(20)
Lo fan
Hi fan
HH fan
64.4(18)
60.8(16)
57.2(14)
53.6(12)
Indoo
80°F
)
(30°C
)
(27°C
75°F
50.0(10)
46.4( 8)
77
(25)
. 86°F
mp
r air te
)
(24°C
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
NOTE
• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on
the indoor unit type.
• Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value.
(In this case, be sure to stop all the indoor units where performance is not being checked.)
• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.
30
5-1-3. Temperature Charts (CM3172)
Outdoor Unit CM3172
Indoor Unit KMS0772 × 1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan)
(230V, 60Hz)
Low pressure at wide tube service valve
psig (MPaG)
(1) Low pressure performance chart
174
(1.2)
Lo fan
146
(1.0)
Hi fan
Hi fan
0°C)
mp. 86°F (3
Indoor air te
)
80°F (27°C
C)
75°F (24°
118
(0.8)
90
(0.6) 77
(25)
HH fan
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
(2) Operating current performance chart
Operating current (A)
5
Lo fan
Hi fan
4
3
77
(25)
p.
em
ir t
a
or
o
Ind
Hi fan
HH fan
8
)
°C
30
(
6°F
)
°C
(27 )
C
°F
80 (24°
°F
75
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
Indoor discharge air temperature °F (°C)
(3) Indoor discharge air performance chart
68.0(20)
Lo fan
Hi fan
Hi fan
HH fan
64.4(18)
60.8(16)
57.2(14)
Indoor air
53.6(12)
(30°C)
temp. 86°F
C)
(2
80°F 7°
75°F (24°C)
50.0(10)
46.4( 8)
77
(25)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
NOTE
• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on
the indoor unit type.
• Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value.
(In this case, be sure to stop all the indoor units where performance is not being checked.)
• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.
31
Outdoor Unit CM3172
Indoor Unit KMS0972 × 1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan)
(230V, 60Hz)
Low pressure at wide tube service valve
psig (MPaG)
(1) Low pressure performance chart
174
(1.2)
Lo fan
146
(1.0)
Hi fan
HH fan
temp. 86°F
Indoor air
)
C
7°
(2
80°F
(30°C)
C)
75°F (24°
118
(0.8)
90
(0.6) 77
(25)
Hi fan
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
(2) Operating current performance chart
Operating current (A)
5
Lo fan
Hi fan
4
77
(25)
p.
em
ir t
ra
oo
Ind
3
Hi fan
)
°C
30
F(
°
86
HH fan
)
°C
(27 )
°F 24°C
0
8
(
°F
75
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
Indoor discharge air temperature °F (°C)
(3) Indoor discharge air performance chart
68.0(20)
Lo fan
Hi fan
Hi fan
HH fan
64.4(18)
60.8(16)
57.2(14)
53.6(12)
temp. 86°F
Indoor air
C)
80°F (27°
C)
75°F (24°
50.0(10)
46.4( 8)
77
(25)
(30°C)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
NOTE
• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on
the indoor unit type.
• Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value.
(In this case, be sure to stop all the indoor units where performance is not being checked.)
• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.
32
Outdoor Unit CM3172
Indoor Unit KMS1272 × 1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan)
(230V, 60Hz)
Low pressure at wide tube service valve
psig (MPaG)
(1) Low pressure performance chart
174
(1.2)
Lo fan
Hi fan
Hi fan
146
(1.0)
0°C)
mp. 86°F (3
Indoor air te
)
80°F (27°C
118
(0.8)
90
(0.6) 77
(25)
HH fan
C)
75°F (24°
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
(2) Operating current performance chart
Operating current (A)
6
Lo fan
5
Hi fan
Hi fan
ir t
or a
Indo
6°F
.8
emp
HH fan
)
°C)
7°C )
F (2
80° (24°C
F
°
75
(30
4
3
77
(25)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
Indoor discharge air temperature °F (°C)
(3) Indoor discharge air performance chart
68.0(20)
Lo fan
Hi fan
Hi fan
HH fan
64.4(18)
60.8(16)
57.2(14)
0°C)
mp. 86°F (3
Indoor air te
53.6(12)
80°F (27°C)
75°F (24°C)
50.0(10)
46.4( 8)
77
(25)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
NOTE
• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on
the indoor unit type.
• Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value.
(In this case, be sure to stop all the indoor units where performance is not being checked.)
• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.
33
Outdoor Unit CM3172
Indoor Unit KMS1872 × 1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan)
(230V, 60Hz)
Low pressure at wide tube service valve
psig (MPaG)
(1) Low pressure performance chart
Lo fan
174
(1.2)
Hi fan
146
(1.0)
C)
p. 86°F (30°
118
(0.8)
90
(0.6) 77
(25)
Indoor air tem
80°F (27°C)
75°F (24°C)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
(2) Operating current performance chart
9
Lo fan
Operating current (A)
8
Hi fan
°C)
(30
°F
. 86
mp °C)
e
t
air
(27 )
oor 80°F
°C
Ind
(24
F
75°
7
6
5
4
77
(25)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
Indoor discharge air temperature °F (°C)
(3) Indoor discharge air performance chart
Lo fan
68.0(20)
Hi fan
64.4(18)
60.8(16)
57.2(14)
Indoor air
53.6(12)
(30°C)
80°F (27°C)
)
75°F (24°C
50.0(10)
46.4( 8)
77
(25)
temp. 86°F
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
NOTE
• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on
the indoor unit type.
• Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value.
(In this case, be sure to stop all the indoor units where performance is not being checked.)
• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.
34
Outdoor Unit CM3172
Indoor Unit KMS2472 × 1
Cooling Characteristics
(RH : 46%, Indoor fan speed : High fan)
(230V, 60Hz)
Low pressure at wide tube service valve
psig (MPaG)
(1) Low pressure performance chart
Lo fan
174
(1.2)
Hi fan
146
(1.0)
118
(0.8)
90
(0.6) 77
(25)
Indoor air temp.
80°F (27°C)
86°F (30°C)
75°F (24°C)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
(2) Operating current performance chart
Operating current (A)
12
Lo fan
11
or
o
Ind
10
air
.
mp
te
°F
86
Hi fan
)
0°C
(3
)
°C
(27
)
°C
4
(2
5°F
°F
80
7
9
8
77
(25)
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
Indoor discharge air temperature °F (°C)
(3) Indoor discharge air performance chart
Lo fan
68.0(20)
Hi fan
64.4(18)
60.8(16)
57.2(14)
53.6(12)
Indoor air
(30°C)
C)
80°F (27°
)
75°F (24°C
50.0(10)
46.4( 8)
77
(25)
temp. 86°F
86
95
(30)
(35)
Outdoor air temperature °F (°C)
104
(40)
NOTE
• This performance chart shows operation of a single wall-mounted indoor unit. The performance chart will vary depending on
the indoor unit type.
• Check each performance value in test-run mode. Electrical performance values represent a combined indoor/outdoor value.
(In this case, be sure to stop all the indoor units where performance is not being checked.)
• The performance is for a tubing length of 24.6ft (7.5m). If the tubing length is different, the performance chart will vary.
35
5-2. Cooling Capacity
Outdoor Unit : CM1972
Indoor Unit
: KMS0972 × 3
Power Supply : 230V Single Phase 60Hz
< Cooling Capacity >
RATING CAPACITY:
INDOOR
ENT. TEMP. °F (°C)
W.B.
D.B.
59
(15.0)
63
(17.2)
67
(19.4)
71
(21.7)
75
(23.9)
19,700 BTU/h
TC
65
(18.3)
19,800
AIR FLOW RATE:
OUTDOOR
AMBIENT TEMP. °F (°C)
75
85
95
(23.9)
(29.4)
(35.0)
19,100
18,350
17,770
883 CFM
105
(40.6)
16,890
115
(46.1)
15,940
72
76
80
84
88
(22.2)
(24.4)
(26.7)
(28.9)
(31.1)
SHC
SHC
SHC
SHC
SHC
TC
17,470
19,800
19,800
19,800
19,800
20,790
17,130
19,100
19,100
19,100
19,100
20,060
16,790
18,350
18,350
18,350
18,350
19,290
16,610
17,770
17,770
17,770
17,770
18,720
16,270
16,890
16,890
16,890
16,890
17,800
15,760
15,940
15,940
15,940
15,940
16,820
72
76
80
84
88
(22.2)
(24.4)
(26.7)
(28.9)
(31.1)
SHC
SHC
SHC
SHC
SHC
TC
14,210
17,130
20,390
20,790
20,790
21,790
13,870
16,960
20,040
20,060
20,060
21,050
13,530
16,610
19,290
19,290
19,290
20,240
13,360
16,270
18,720
18,720
18,720
# 19,700
13,010
15,930
17,800
17,800
17,800
18,750
12,670
15,590
16,820
16,820
16,820
17,720
72
76
80
84
88
(22.2)
(24.4)
(26.7)
(28.9)
(31.1)
SHC
SHC
SHC
SHC
SHC
TC
10,960
13,870
16,960
20,040
21,790
22,800
10,610
13,700
16,790
19,700
21,050
22,040
10,270
13,360
16,440
19,360
20,240
21,210
10,100
13,190
16,270
19,190
19,700
20,700
9,760
12,840
15,930
18,750
18,750
19,720
9,410
12,330
15,590
17,720
17,720
18,470
72
76
80
84
88
(22.2)
(24.4)
(26.7)
(28.9)
(31.1)
SHC
SHC
SHC
SHC
SHC
TC
7,360
10,440
13,530
16,440
19,530
23,690
7,190
10,100
13,190
16,270
19,190
22,920
6,840
9,930
13,010
15,930
19,010
22,080
6,670
9,760
12,840
15,760
18,840
21,600
6,330
9,410
12,500
15,410
18,500
20,590
5,980
8,900
11,990
15,070
17,990
18,950
76
80
84
88
(24.4)
(26.7)
(28.9)
(31.1)
SHC
SHC
SHC
SHC
7,010
10,100
13,190
16,100
6,840
9,930
12,840
15,930
6,500
9,590
12,670
15,590
6,330
9,410
12,500
15,410
6,160
9,240
12,160
15,070
5,640
8,730
11,640
14,730
TC : Total Cooling Capacity (BTU/h) SHC : Sensible Heat Capacity (BTU/h)
NOTE
1. Rating conditions (#) : Indoor Unit Entering Air Temp. 80 °F (26.7 °C) D.B. / 67 °F (19.4 °C) W.B.
: Outdoor Ambient Temp. 95 °F (35 °C) D.B.
2. Above data does not take Freeze Prevention Protection during cooling operation into account.
For this reason, the value may vary from the actual cooling characteristics.
3. Above data represents the value when the operation frequency of a compressor is fixed.
36
Outdoor Unit : CM2472
Indoor Unit
: KMS0972 × 3
Power Supply : 230V Single Phase 60Hz
< Cooling Capacity >
RATING CAPACITY:
INDOOR
ENT. TEMP. °F (°C)
W.B.
D.B.
59
(15.0)
63
(17.2)
67
(19.4)
71
(21.7)
75
(23.9)
25,400 BTU/h
TC
65
(18.3)
25,690
AIR FLOW RATE:
OUTDOOR
AMBIENT TEMP. °F (°C)
75
85
95
(23.9)
(29.4)
(35.0)
24,800
23,840
23,190
883 CFM
105
(40.6)
22,040
115
(46.1)
17,290
72
76
80
84
88
(22.2)
(24.4)
(26.7)
(28.9)
(31.1)
SHC
SHC
SHC
SHC
SHC
TC
20,210
23,130
25,690
25,690
25,690
26,810
19,870
22,790
24,800
24,800
24,800
25,900
19,360
22,270
23,840
23,840
23,840
24,910
19,010
22,100
23,190
23,190
23,190
24,290
18,500
21,410
22,040
22,040
22,040
23,110
16,440
17,290
17,290
17,290
17,290
17,700
72
76
80
84
88
(22.2)
(24.4)
(26.7)
(28.9)
(31.1)
SHC
SHC
SHC
SHC
SHC
TC
16,790
19,700
22,960
25,870
26,810
27,910
16,440
19,360
22,440
25,530
25,900
26,980
15,930
19,010
22,100
24,910
24,910
25,970
15,760
18,670
21,760
24,290
24,290
# 25,400
15,240
18,160
21,240
23,110
23,110
24,180
13,010
15,930
17,700
17,700
17,700
18,070
72
76
80
84
88
(22.2)
(24.4)
(26.7)
(28.9)
(31.1)
SHC
SHC
SHC
SHC
SHC
TC
13,360
16,270
19,360
22,440
25,360
28,980
13,010
15,930
19,010
22,100
25,020
28,030
12,500
15,590
18,670
21,590
24,670
26,990
12,330
15,240
18,330
21,410
24,330
26,500
11,810
14,900
17,990
20,900
23,810
25,010
9,590
12,500
15,590
18,070
18,070
18,380
72
76
80
84
88
(22.2)
(24.4)
(26.7)
(28.9)
(31.1)
SHC
SHC
SHC
SHC
SHC
TC
9,590
12,670
15,760
18,670
21,590
29,880
9,240
12,330
15,410
18,330
21,240
28,920
8,900
11,810
15,070
17,990
20,900
27,870
8,730
11,640
14,730
17,810
20,730
27,460
8,210
11,130
14,210
17,300
20,210
25,330
5,980
8,900
11,990
15,070
17,990
18,590
76
80
84
88
(24.4)
(26.7)
(28.9)
(31.1)
SHC
SHC
SHC
SHC
9,070
12,160
15,070
18,160
8,730
11,810
14,730
17,810
8,390
11,470
14,390
17,470
8,210
11,300
14,390
17,300
7,530
10,610
13,700
16,610
5,470
8,560
11,640
14,560
TC : Total Cooling Capacity (BTU/h) SHC : Sensible Heat Capacity (BTU/h)
NOTE
1. Rating conditions (#) : Indoor Unit Entering Air Temp. 80 °F (26.7 °C) D.B. / 67 °F (19.4 °C) W.B.
: Outdoor Ambient Temp. 95 °F (35 °C) D.B.
2. Above data does not take Freeze Prevention Protection during cooling operation into account.
For this reason, the value may vary from the actual cooling characteristics.
3. Above data represents the value when the operation frequency of a compressor is fixed.
37
Outdoor Unit : CM3172
Indoor Unit
: KMS0972 × 4
Power Supply : 230V Single Phase 60Hz
< Cooling Capacity >
RATING CAPACITY:
INDOOR
ENT. TEMP. °F (°C)
W.B.
D.B.
59
(15.0)
63
(17.2)
67
(19.4)
71
(21.7)
75
(23.9)
30,600 BTU/h
TC
65
(18.3)
31,170
AIR FLOW RATE:
OUTDOOR
AMBIENT TEMP. °F (°C)
75
85
95
(23.9)
(29.4)
(35.0)
30,000
28,730
28,010
1,177 CFM
105
(40.6)
22,960
115
(46.1)
16,690
72
76
80
84
88
(22.2)
(24.4)
(26.7)
(28.9)
(31.1)
SHC
SHC
SHC
SHC
SHC
TC
25,580
29,470
31,170
31,170
31,170
32,490
24,900
29,010
30,000
30,000
30,000
31,280
24,440
28,320
28,730
28,730
28,730
29,960
23,980
28,010
28,010
28,010
28,010
29,310
21,700
22,960
22,960
22,960
22,960
23,400
16,690
16,690
16,690
16,690
16,690
16,970
72
76
80
84
88
(22.2)
(24.4)
(26.7)
(28.9)
(31.1)
SHC
SHC
SHC
SHC
SHC
TC
21,010
24,900
29,010
32,490
32,490
33,790
20,550
24,440
28,550
31,280
31,280
32,540
19,870
23,980
28,100
29,960
29,960
31,170
19,640
23,520
27,640
29,310
29,310
# 30,600
17,120
21,240
23,400
23,400
23,400
23,770
14,610
16,970
16,970
16,970
16,970
17,200
72
76
80
84
88
(22.2)
(24.4)
(26.7)
(28.9)
(31.1)
SHC
SHC
SHC
SHC
SHC
TC
16,440
20,320
24,440
28,550
32,440
35,020
15,980
19,870
23,980
28,100
31,980
33,730
15,290
19,410
23,520
27,410
31,170
32,320
15,070
19,180
23,300
27,180
30,600
31,860
12,550
16,670
20,780
23,770
23,770
24,020
10,270
14,150
17,200
17,200
17,200
17,350
72
76
80
84
88
(22.2)
(24.4)
(26.7)
(28.9)
(31.1)
SHC
SHC
SHC
SHC
SHC
TC
11,410
15,520
19,640
23,520
27,640
36,040
10,950
15,070
19,180
23,070
27,180
34,730
10,490
14,610
18,720
22,610
26,720
33,270
10,490
14,380
18,500
22,610
26,500
32,940
7,750
11,640
15,980
19,870
23,750
24,130
5,690
9,580
13,690
17,350
17,350
17,390
76
80
84
88
(24.4)
(26.7)
(28.9)
(31.1)
SHC
SHC
SHC
SHC
10,720
14,840
18,950
22,840
10,270
14,610
18,500
22,380
9,810
14,150
18,040
21,920
9,810
13,920
17,810
21,920
7,070
11,180
15,290
19,180
5,240
9,350
13,240
17,350
TC : Total Cooling Capacity (BTU/h) SHC : Sensible Heat Capacity (BTU/h)
NOTE
1. Rating conditions (#) : Indoor Unit Entering Air Temp. 80 °F (26.7 °C) D.B. / 67 °F (19.4 °C) W.B.
: Outdoor Ambient Temp. 95 °F (35 °C) D.B.
2. Above data does not take Freeze Prevention Protection during cooling operation into account.
For this reason, the value may vary from the actual cooling characteristics.
3. Above data represents the value when the operation frequency of a compressor is fixed.
38
1 2 3
1 2 3
CM
1 1
2 2
WHT
C/W
OVERLOAD
RELAY(OLR)
COMPRESSOR
MOTOR
S/U
(3P)CONNECTOR
COMPRESSOR
THERMISTOR
BLK
BLK
RED (PNK)
WHT
BLU
V
W
W
W
FM
1 2 3 4 5 6 7
U
W
COMP
FAN MOTOR
FM
1 2 3 4 5 6 7
1 2 3 4 5 6 7
RED
RED
FERRITE
CORE
RED (PNK)
WHT
BLU
R/V
COIL
THERMISTOR
YEL
YEL
BLK
BLK
OUTDOOR
THERMISTOR
HIGH PRESSURE
SWITCH
C-TH
1 2 3 4
1 2 3 4
(2P)CONNECTOR
1 1
WHT
WHT
2 2
WHT
RED
(2P)CONNECTOR
1 1
2 2
BLK
MV2
1 2 3 4 5
1 2 3 4 5
1 2 3 4
1 2 3 4
CN01
1 2 3 4 5 6
1 2 3 4 5 6
CN02
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
CN03
MV2
1 2 3 4 5
1 2 3 4 5
MAGNETIC COIL
EXPANSION BOARD
KS10
1 2 3 4
KS22
1 2 3 4 5 6
CONTROLLER
KS23
1 2 3 4 5 6 7 8
1 2 3 4
1 2 3 4
B-TH
1 2 3 4
1 2 3 4
A-TH
BLK
WHT
RED
BLU
BLK
WHT
RED
BLU
AW THERMISTOR
YEL
YEL
YEL
YEL
AN THERMISTOR
BLK
WHT
RED
BLU
BLK
WHT
W
SICOM2
SI-C
WHT
WHT
W
SICOM2
W
WHT
WHT
(2P)CONNECTOR
WHT
MV0
BRN
W
W
W
SI-B
ACIN2
W
SI-A
W
E ACIN1
GRN/YEL
MAGNETIC COIL MAGNETIC COIL
MV1
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
25A
W
E1
MV0
1 2 3 4 5
1 2 3 4 5
W
L1
MV1
1 2 3 4 5
1 2 3 4 5
L2
W
WHT
WHT
ORG
RED
YEL
BLK
GRY
BW THERMISTOR
YEL
YEL
YEL
YEL
BN THERMISTOR
BLK
WHT
RED
BLU
BLU
BLU
BRN
BRN
WHT
WHT
ORG
ORG
(7P)CONNECTOR
WHT
BLK
BLK
39
CW THERMISTOR
YEL
YEL
YEL
YEL
CN THERMISTOR
WHT
4
1
2
GND
1
5
8
WHT
9
7
BLK
6
4
WHT
3
2
1
BLK
BLK
TERMINAL PLATE
WHT
RELAY
BLK
BLK
TERMINAL PLATE
FERRITE
CORE
5
6
BLK
GND
WARNING
ORG
RED
YEL
BLK
GRY
WHT
GRN/YEL
ORG
RED
YEL
BLK
GRY
1 2 3 4
1 2 3 4
COIL/OUTDOOR
BLU
L1
L2
2 1
2 1
RED
POWER
SUPPLY
C INDDOR B INDDOR A INDDOR
UNIT
UNIT
UNIT
TO INDDOR UNIT
REACTANCE
6. ELECTRICAL DATA
6-1. Electric Wiring Diagrams
Outdoor Unit CM1972
To avoid electrical shock hazard, be sure to
disconnect power before checking, servicing
and/or cleaning any electrical parts.
8FA2-5257-58800-1
BLK
1 2 3
1 2 3
CM
1 1
2 2
WHT
C/W
OVERLOAD
RELAY(OLR)
COMPRESSOR
MOTOR
S/U
(3P)CONNECTOR
COMPRESSOR
THERMISTOR
BLK
BLK
RED (PNK)
WHT
BLU
RED (PNK)
WHT
BLU
V
W
W
W
FM
1 2 3 4 5 6 7
U
W
COMP
FAN MOTOR
FM
1 2 3 4 5 6 7
1 2 3 4 5 6 7
RED
FERRITE
CORE
RED
MV3
1 2 3 4 5
1 2 3 4 5
MV2
1 2 3 4 5
1 2 3 4 5
1 2 3 4
1 2 3 4
CN01
1 2 3 4 5
1 2 3 4 5
MV2
1 2 3 4 5
1 2 3 4 5
MV3
W
SICOM2
SI-C
W
SI-D
W
SICOM2
W
MAGNETIC COIL MAGNETIC COIL
BLK
(2P)CONNECTOR
WHT
1 1
2 2
(2P)CONNECTOR
1 1
WHT
WHT
2 2
WHT
WHT
RED
C-TH
1 2 3 4
1 2 3 4
D-TH
1 2 3 4
1 2 3 4
EXPANSION BOARD
1 2 3 4 5 6
1 2 3 4 5 6
CN02
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
CN03
KS10
1 2 3 4
CONTROLLER
KS22
1 2 3 4 5 6
1 2 3 4
1 2 3 4
B-TH
KS23
1 2 3 4 5 6 7 8
1 2 3 4
1 2 3 4
A-TH
BLU
BLU
BRN
BRN
WHT
WHT
ORG
ORG
(7P)CONNECTOR
WHT
BLK
BLK
R/V
COIL
THERMISTOR
YEL
YEL
BLK
BLK
OUTDOOR
THERMISTOR
HIGH PRESSURE
SWITCH
AW THERMISTOR
YEL
YEL
YEL
YEL
AN THERMISTOR
BLK
WHT
RED
BLU
BLK
WHT
RED
BLU
DW THERMISTOR
YEL
YEL
YEL
YEL
DN THERMISTOR
BLK
WHT
RED
BLU
(2P)CONNECTOR
WHT
WHT
WHT
MV0
GRY
BRN
W
W
W
SI-B
ACIN2
W
SI-A
W
E ACIN1
GRN/YEL
MAGNETIC COIL MAGNETIC COIL
MV1
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
25A
W
E1
MV0
1 2 3 4 5
1 2 3 4 5
W
L1
MV1
1 2 3 4 5
1 2 3 4 5
L2
W
WHT
WHT
ORG
RED
YEL
BLK
GRY
BW THERMISTOR
YEL
YEL
YEL
YEL
BN THERMISTOR
BLK
WHT
RED
BLU
BLK
WHT
CW THERMISTOR
YEL
YEL
YEL
YEL
CN THERMISTOR
40
ORG
RED
YEL
BLK
GRY
WHT
4
1
2
GND
1
5
WHT
8
WHT
12
11
10
9
7
BLK
6
4
WHT
3
2
1
BLK
BLK
TERMINAL PLATE
FERRITE
CORE
WHT
RELAY
BLK
BLK
TERMINAL PLATE
5
6
BLK
GND
WARNING
ORG
RED
YEL
BLK
GRY
WHT
GRN/YEL
ORG
RED
YEL
BLK
GRY
1 2 3 4
1 2 3 4
COIL/OUTDOOR
BLU
L1
L2
2 1
2 1
RED
POWER
SUPPLY
D INDDOR C INDDOR B INDDOR A INDDOR
UNIT
UNIT
UNIT
UNIT
TO INDDOR UNIT
REACTANCE
Outdoor Unit CM2472
To avoid electrical shock hazard, be sure to
disconnect power before checking, servicing
and/or cleaning any electrical parts.
8FA2-5257-59000-1
BLK
1 2 3
1 2 3
CM
1 1
2 2
WHT
C/W
OVERLOAD
RELAY(OLR)
COMPRESSOR
MOTOR
S/U
(3P)CONNECTOR
COMPRESSOR
THERMISTOR
BLK
BLK
RED (PNK)
WHT
BLU
V
W
W
W
FM
1 2 3 4 5 6 7
U
W
COMP
FAN MOTOR
FM
1 2 3 4 5 6 7
1 2 3 4 5 6 7
RED
RED
FERRITE
CORE
RED (PNK)
WHT
BLU
1 2 3 4
1 2 3 4
COIL/OUTDOOR
MV3
1 2 3 4 5
1 2 3 4 5
MV2
1 2 3 4 5
1 2 3 4 5
1 2 3 4
1 2 3 4
CN01
1 2 3 4 5
1 2 3 4 5
MV2
1 2 3 4 5
1 2 3 4 5
MV3
W
SICOM2
SI-C
W
SI-D
W
SICOM2
W
MAGNETIC COIL MAGNETIC COIL
BLK
(2P)CONNECTOR
WHT
1 1
2 2
(2P)CONNECTOR
1 1
WHT
WHT
2 2
WHT
WHT
RED
C-TH
1 2 3 4
1 2 3 4
D-TH
1 2 3 4
1 2 3 4
EXPANSION BOARD
1 2 3 4 5 6
1 2 3 4 5 6
CN02
1 2 3 4 5 6 7 8
1 2 3 4 5 6 7 8
CN03
KS10
1 2 3 4
CONTROLLER
KS22
1 2 3 4 5 6
1 2 3 4
1 2 3 4
B-TH
KS23
1 2 3 4 5 6 7 8
1 2 3 4
1 2 3 4
A-TH
BLU
BLU
BRN
BRN
WHT
WHT
ORG
ORG
(7P)CONNECTOR
WHT
BLK
BLK
R/V
COIL
THERMISTOR
YEL
YEL
BLK
BLK
OUTDOOR
THERMISTOR
HIGH PRESSURE
SWITCH
AW THERMISTOR
YEL
YEL
YEL
YEL
AN THERMISTOR
BLK
WHT
RED
BLU
BLK
WHT
RED
BLU
DW THERMISTOR
YEL
YEL
YEL
YEL
DN THERMISTOR
BLK
WHT
RED
BLU
(2P)CONNECTOR
WHT
WHT
WHT
MV0
GRY
BRN
W
W
SI-B
ACIN2
W
SI-A
W
E ACIN1
W
FERRITE
CORE
GRN/YEL
MAGNETIC COIL MAGNETIC COIL
MV1
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
1 2 3 4 5
25A
W
E1
MV0
1 2 3 4 5
1 2 3 4 5
W
L1
MV1
1 2 3 4 5
1 2 3 4 5
L2
W
WHT
WHT
ORG
RED
YEL
BLK
GRY
BW THERMISTOR
YEL
YEL
YEL
YEL
BN THERMISTOR
BLK
WHT
RED
BLU
BLK
WHT
CW THERMISTOR
YEL
YEL
YEL
YEL
CN THERMISTOR
41
ORG
RED
YEL
BLK
GRY
WHT
RELAY
4
1
GND
2
5
WHT
8
WHT
12
11
10
9
7
BLK
6
4
WHT
3
2
1
BLK
BLK
TERMINAL PLATE
WHT
1
BLK
BLK
TERMINAL PLATE
5
6
BLK
GND
WARNING
ORG
RED
YEL
BLK
GRY
WHT
GRN/YEL
ORG
RED
YEL
BLK
GRY
L1
L2
2 1
2 1
RED
POWER
SUPPLY
D INDDOR C INDDOR B INDDOR A INDDOR
UNIT
UNIT
UNIT
UNIT
TO INDDOR UNIT
REACTANCE
Outdoor Unit CM3172
To avoid electrical shock hazard, be sure to
disconnect power before checking, servicing
and/or cleaning any electrical parts.
8FA2-5257-89300-1
BLU
BLK
7. FUNCTIONS
7-1. Explanation of Functions
NOTE
The numerical values such as temperature, frequency, time and current in parentheses are an example
of CM3172 and the values are different from the other models.
Control/conditions
INITIAL
Unit operation
Breaker is ON.
The ON/OFF operation
button on the remote
controller is pressed.
Explanation
Power is supplied to the indoor and outdoor unit
control circuits, however the unit remains stopped.
Positioning of the outdoor unit electric expansion
valve is performed.
If automatic operation mode has been selected
with the remote controller, operation begins in
SENSOR DRY, or COOL mode depending
on the room temperature and
outdoor temperature at the time operation starts.
This applies in the case of automatic
COOL operation.
Depending on the operational mode, refer to the SENSOR DRY, or COOL item.
42
Control/conditions
COOL
The ON/OFF operation
button on the remote
controller is pressed.
Unit operation
Explanation
The operation lamp illuminates.
The indoor fan operates at the set fan speed.
The outdoor unit stops.
The outdoor unit starts.
The outdoor unit does not operate for 3 minutes
even after the breaker is turned ON.
The frequency is increased at the rate of 0.5
Hz every 1 seconds.
(Compressor and the outdoor fan start.)
The room temperature
has reached the
desired temperature.
When the frequency reaches Hz,
frequency increases are stopped for a period
of seconds. (Refer to Table 1.)
This is in order to stabilize the return of oil to the
compressor.
The frequency then increases.
If the indoor and outdoor temperatures are high,
the current peak cut-off activates, stopping
any increases in frequency.
The indoor temperature and the desired
temperature are approximately equal.
Operating frequency is stabilized in order to
maintain a comfortable environment.
The thermostat turns
OFF.
The thermostat turns
ON again.
Freeze prevention
The outdoor unit stops. (It does not stop if the
thermostart for another indoor unit is ON.)
After the thermostat turns ON again, the
outdoor unit will not operate for 3 minutes,
even if the room temperature increases
above the desired temperature.
After 3 minutes, the outdoor unit begins operating
automatically.
During these 3 minutes, a pressure balance is
achieved, allowing the compressor to start
more easily.
When the temperature of the indoor heat
exchanger drops to approximately 35.6 °F
or below, the compressor turns OFF, the
outdoor fan turns OFF, and the indoor fan
continues operating with no changes.
In order to protect against freezing, the
compressor stops temporarily, until the
temperature of the indoor heat exchanger has
risen.
Approximately 3 minutes later, if the
temperature of the indoor heat exchanger
is adove 46.4 °F, the system returns to its
original conditions.
Stop
All indicator lamps turn OFF. The indoor and
outdoor units stop.
Operation is restarted
within 4 hours (only when
AUTO mode is selected
with the remote
controller).
Starts operating in the same operating mode
(COOL) and with the same temperature
settings as before operation was stopped.
Operation starts after 4
hours or more have
passed.
New operating mode is determined based on
the temperature conditions at the time the
ON/OFF operation button is pressed.
Within 4 hours after operation was stopped, it is
assumed that there has been no significant
change in the indoor and outdoor temperatures,
and the previous conditions (COOL) are stored.
Frequency control
(Hz)
(senconds)
Outdoor air temperature is below 32 °F.
Outdoor air temperature is 32 °F or higher.
(25) Hz
(120) seconds
(60) seconds
(35) Hz
(60) seconds
(30) seconds
(45) Hz
(60) seconds
(30) seconds
(55) Hz
(180) seconds
(90) seconds
Table 1
43
(1/f fluctuation fan)
Control/conditions
SENSOR The ON/OFF operation
button on the remote
DRY
controller is pressed.
Unit operation
The operation lamp illuminates.
The indoor fan operates at the set fan speed.
The outdoor unit stops.
The outdoor unit starts.
Explanation
The outdoor unit does not operate for 3 minutes
even after the breaker is turned ON.
The frequency is increased at the rate of 0.5
Hz every 1 seconds.
(Compressor and the outdoor fan start.)
The room temperature
reaches the desired
temperature, and there
is no need for further
cooling.
The room temperature is
59 °F or higher, and is
slightly too cold.
When the frequency reaches Hz,
frequency increases are stopped for a period
of seconds. (Refer to Table 1.)
This is in order to stabilize the return of oil to the
compressor.
The frequency then increases.
If the indoor and outdoor temperatures are high,
the current peak cut-off activates, stopping
any increases in frequency.
DRY operation starts
Operating frequency is stabilized in order to
maintain a comfortable environment.
DRY A operation
The indoor fan changes between "Low"
and "LL" (very low) over a 6-minute cycle.
This is 1/f fluctuation fan operation.
(Refer to Fig. 1.)
Operates to effectively dehumidify the air while
not excessively reducing the indoor
temperature.
The indoor unit operates at 1/f fluctuation fan
operation, at a fan speed that does not cause
a chilly feeling.
DRY B operation
(1) The indoor fan changes between "Low"
and "LL" (very low) over a 6-minute cycle.
This is 1/f fluctuation fan operation.
The compressor operates on a 3-minutes ON,
6-minutes OFF cycle, to prevent the room
temperature from dropping too much.
(2) After appoximately 3 minutes, the
compressor turns OFF, the outdoor fan
turns OFF, and the indoor fan turns OFF.
(3) After approximately 6 minutes, the
conditions return to (1).
The room temperature is
below 59 °F.
Monitoring operation begins.
1/f fluctuation fan
250
200
(Step)
150
100
50
0
6-minute cycle
Fig. 1
44
When monitoring operation begins, the
compressor stops, and the indoor fan operates at
"LL" (very low) speed.
7-2. Protective Functions
NOTE
The numerical values such as temperature, frequency, time and current in parentheses are an example
of CM3172 and the values are different from the other models.
7-2-1. Current Control
The operating current may rise as a result of causes including increasing cooling loads or decreases in power
voltage. In these cases, the operating frequency is automatically reduced, or operation is stopped, in order to control
the operating current so that it is (20 A) or less.
As a result:
• Power breakers and fuses will not be tripped.
• Operation can continue during this period with somewhat reduced cooling capacity.
• Operation at normal capacity is restored when the cause of the current rise is eliminated.
Description of function
Example of operation for cooling
Power Point C
Point B
Point A
Frequency
Current
(20A)
(17A)
(16.6A)
Target
frequency
Frequency
Stops operation
Approx.3 minutes
•
•
•
•
Operates at the target frequency at Point A and below.
Stops increases to the frequency between Points A and B.
Reduces the frequency by 1 Hz per 0.5 seconds when Point B is exceeded.
Stops operation, and restarts it appoximately 3 minutes later, if Point C is exceeded.
(May operate when sudden voltage fluctuations occur. Indicates trouble.)
(1) Automatic frequency control
The operating frequency is reduced automatically, or operation is stopped, in order to control the operating
current so that it is at or below the values shown in the table below.
Point C (peak cut trip)
Point B (Hz reduction)
Point A (Hz increase prohibit)
(20A)
COOL
(20.0)
(17.0)
(16.6)
45
(2) Current control
The operating frequency upper limits shown in the figure below are established for frequency reduction and
increase-prohibit.
Current(A)
Example of operation during cooling
Trip
Hz reduction
Hz increase prohibit
Hz reduction
Hz increase
prohibit
Hz reduction
Hz increase prohibit
(16)
(15.6)
0
Frequency (Hz)
(30)
7-2-2. Low Start Current
Operation starts at (8 Hz), and the start current is less than the normal operating current. This prevents the flickering
of fluorescent lights or television screens that occurs when ordinary A/C units start.
7-2-3. Compressor Temperature Control
To protect the compressor coil from overheating, the operating frequency is controlled based on the compressor
discharge temperature.
Compressor discharge temperature
(°F)
Trip
(230)
5Hz every 30 sec. reduction
(223)
2Hz every 30 sec. reduction
(212)
No control
Increase
prohibit range
(Hz reduction)
(194)
* Within the increase-prohibit range, the range changes
to the Hz reduction range (2 Hz every 30 seconds) if
the compressor temperature rises by 4 °F.
46
8. TROUBLESHOOTING
8-1. Precautions before Performing Inspection or Repair
Both the indoor unit and outdoor unit include electronic control circuits.
Be sure to pay attention to the following before inspecting or repairing the outdoorside electronic circuits.
High-capacity electrolytic capacitors are used inside the outdoor unit controller (inverter). They retain an
electrical charge (charging voltage DC 311 V) even after the power is turned OFF, and some time is required
for the charge to dissipate.
Be careful not to touch any electrified parts before the control circuit board Power Lamp (red) turns OFF.
If the outdoor control circuit board is normal, approximately 180 seconds will be required for the charge to
dissipate. However, allow at least 30 minutes for the charge to dissipate if it is thought there might be trouble
with the outdoor control circuit board.
For example, if the outdoor control circuit board fuse has blown, approximately 30 minutes will be required to
discharge the high-capacity electrolytic capacitors.
47
8-2. Trouble Diagnosis by Error Monitor Lamps
WARNING
To prevent electric shock, do not inspect or repair until
the Power Lamp on the P.C.Board is turned off.
8-2-1. Location of the Error Monitor Lamps
Remove the top plate of outdoor unit and the cover of Electrical Component Box.
The Power Lamp and Error Monitor Lamps are located on the P.C.Board of Electrical Component Box. (Fig.1)
Heat Exchanger
Rear side
P.C.Board of Electrical Component Box.
Error Monitor Lamps
Power Lamp
ERR0
ERR1
ERR2
ERR3
Front side
Fig.1 View from top
8-2-2. Display of the Error Monitor Lamps
If a protective device has activated or there is a sensor failure in the outdoor unit, the 4 error monitor lamps on the
outdoor control circuit board will indicate the nature of the trouble.
: ON
Error Monitor Lamp
ERR0
ERR1
ERR2
: OFF
Error Contents
ERR3
Sensor for compressor discharge temp
Sensor for heat excharge temp
Sensor for branch pipe A (Narrow tube)
Sensor for branch pipe B (Narrow tube)
Sensor for branch pipe C (Narrow tube)
Sensor for branch pipe D (Narrow tube)
Outdoor temp sensor
Sensor for branch pipe A (Wide tube)
Sensor for branch pipe B (Wide tube)
Sensor for branch pipe C (Wide tube)
Sensor for branch pipe D (Wide tube)
HIC circuit trouble (current, temp)
Actuation of comp over load relay
Actuation of freeze protection function
Outdoor unit error. Detail of error message indicate on indoor LED
48
8-3. Checking the Outdoor System
8-3-1. Checking the outdoor unit
No.
Work procedure
Check items (unit operation)
1
• Apply 220 V AC between terminals L1 and L2 on the
• The LED (red) on the control board must illuminate.
2
• Short-circuit the T-RUN terminal to the COM terminal
• The compressor and fan motor must turn ON.
NOTE
outdoor unit terminal plate.
of TEST/T-RUN terminals.
(They turn ON about (70) seconds later after the power
is turned ON.)
If the above check items are okay, but the outdoor unit does not operate, there may be a faulty
connection between the indoor unit and the outdoor unit.
49
8-4. Trouble Diagnosis of Each Part
8-4-1. Problems of Each Part and Inspection Points
For details about the inspection points, refer to the Inspection Points for Each Part.
Does not cool or cooling
performance is inadequate.
Others
The electric expansion valve does
not operate.
The compressor speed does not
increase.
The compressor stops on occasion.
Outdoor fan dose not turn.
Outdoor unit does not operate.
Indoor fan dose not turn.
Operation lamp does not illuminate.
Operation lamp blinking.
Inspection
points
Indoor unit does not operate.
Problems
The compressor (only) does not
operate.
Outdoor unit
Indoor unit
No. of
Inspection
Points for
Each part
Self-Diagnostics check
Indoor controller
(control unit)
Indoor unit
Indoor fan motor
Room temperature
sensor
Heat exchanger
temperature sensor
Inter-unit cable
Switch circuit board
Outdoor control circuit
board
(1)
Diode module
HIC
Outdoor unit
Electrolytic capacitor
Fuse
(2)
Compressor
(3)
Compressor protective
sensor
(4)
Outdoor fan motor
Coil thermistor
(5)
Electric expansion valve
(6)
Branch tubing
temperature sensor
(7)
50
Others
Does not cool or cooling
performance is inadequate.
Others
The electric expansion valve does
not operate.
The compressor speed does not
increase.
The compressor stops on occasion.
Outdoor fan dose not turn.
Outdoor unit does not operate.
Indoor fan dose not turn.
Operation lamp does not illuminate.
Operation lamp blinking.
Inspection
points
Indoor unit does not operate.
Problems
The compressor (only) does not
operate.
Outdoor unit
Indoor unit
No. of
Inspection
Points for
Each part
Breaker
(8)
Refrigerant gas pressure
(9)
8-4-2. Inspection Points for Each Part
(1) Outdoor control circuit board
Refer to 8-3-1. Checking the outdoor unit.
NOTE
Do not remove or insert the outdoor control circuit board connector when power is being supplied to it.
(The controller will be damaged.)
(2) Fuse
Check it visually or the continuity with a tester.
(3) Compressor
Check for an open circuit in the compressor coil winding.
(4) Compressor protective sensor (compressor discharge temperature thermistor)
Check that the senseor is securely contained in the thermostart holder.
(5) Coil thermistor
Check that the sensor is securely contained in the thermostat holder.
51
(6) Electric expansion valve
When replacing the electric expansion valve and coil, be sure to attach the connectors in the correct positions.
Labels are applied to the valve body and coil, corresponding to the connector colors, to identify them.
Use a multi-meter to measure the voltage (12 V).
When the power is turned ON, the needle will move in the
following seguence in approximately 10 to 20 seconds for
each point.
Controller check
Voltage varies
No voltage on circuit board
Model No.
Check the illumination
of the red Power Lamp.
CM1972
MV0
MV1
MV2
CM2472
CM3172
MV0
MV1
MV2
Check the coil resistance.
0 ohm
Sequence
MV3
Check the resistance between the gray lead
wire and the other wires.
Resistance is OK if it is 46 + / – 4ohm at 68 °F
Approx. 46 +/– 4 ohm
Replace the controller.
NOTE
Cool the main unit with
a damp cloth or other
means while welding.
When applying
vacuum, use the
special service magnet
and rotate at least 5
revolutions
counterclockwise to
fully open the electric
expansion valve.
Replace the coil.
Open and close the
electric expansion valve
by hand to check it.
*1
No temperature change
Temperature changes
Replace the electric
expansion valve.
This part is normal.
Check elsewhere.
Use the special service magnet and
rotate 5 revolutions clockwise to fully
close the valve.
Then start the unit and measure the
temperature at the inlet and outlet
tubes of the electric expansion valve.
If the temperature difference is large,
the valve is closed.
Then rotate 5 revolutions
counterclockwise to open the valve.
Operation is normal if the temperature
difference between the 2 tubes drops.
*1 If you have manually checked the electric expansion valve, be sure to reapply the outdoor power after you have
replaced the wiring. (The position of the elecric expansion valve will changed.)
52
(7) Branch tubing temperature sensor
Check that the sensor is securely contained in the thermostat holder.
(8) Breaker
Check whether or not the breaker has been tripped.
Check that the breakers and fuses used are of the specified capacity.
Check that the breaker and its line are exclusive for A/C use.
(9) Refrigerant gas pressure
Start a COOL test run, and messure the temperatures of the A/C intake air and discharge air. Compare the values
with the performance charts.
If the values are higher than the performance charts:
Check for refrigerant shortage or blockage of the refrigerant circuit.
< Assessment of refrigerant shortage >
1. The pressure in the low-pressure section is 5 MPa or more below the value in the performance charts.
2. There is little condensation on the indoor heart exchanger, which overall appears dry.
< Distinguishing between refrigerant shortage and refrigerant circuit blockage >
If the pressure in the low-pressure section does not change when the circuit is charged 2 to 3 times with
refrigerant gas (0.44 lbs each time), or if the change is small, then the problem may not be
refrigerant shortage.
The problem may be a blockage of the refrigerant circuit.
1. Check that there is no internal leakage inside the 4-way valve:
At the low-pressure side tubing, check that there is no temperature difference between the intake and
discharge of the 4-way valve.
2. Check that the electric expansion valve is not blocked. Check as described on the preceding page.
53
8-5. Trouble Diagnosis of Fan Motor
This outdoor DC fan motor contains an internal control PCB. Therefore, it is not possible to measure the coil
resistance, and the following procedure should be used to check the motor.
Perform the trouble diagnosis by Test Run mode described on Installation Instructions of indoor unit.
Important: (A) Turn OFF the power before connecting or disconnecting the motor connectors.
(B) When performing voltage measurement at the outdoor controller connector for (3) in the table
below, the DC motor will trip and voltage output will stop approximately 10 seconds after
operation is started. For this reason, to measure the voltage again, first turn OFF the outdoor
unit power, then, measure the voltage in Test Run mode.
[Trouble symptom 1] The fan does not stop when the outdoor unit stops.
Outdoor unit controller trouble
[Trouble symptom 2] The fan motor does not rotate when the outdoor unit is operating.
(Diagnostic procedure)
* Disconnect the motor connectors and measure the voltage at the DC motor connectors on the outdoor
unit controller (3 locations).
Measurement location
(1) Vm-Gnd: Between pin 1 and pin 4
(2) Vcc-Gnd: Between pin 5 and pin 4
(3) Vsp-Gnd: Between pin 7 and pin 4
Normal value
DC 230V or more
DC 14V or more
After fluctuating 4 times between DC 1.7 to 6.1V
(1 sec. ON) and DC 0 V (1 sec. OFF), the DC
motor trips.
(Diagnostic results)
All of the above measured values are normal. Fan motor trouble (Replace the motor.)
Any one of the above measured values is not normal. Outdoor unit controller trouble
(Replace the controller .)
(Reference)
DC motor connector pin arrangement
Pin 1: Vm (red)
Pin 2: Not used
Pin 3: Not used
Pin 4: Gnd (blue)
Pin 5: Vcc (brown)
Pin 6: PG (white)
Pin 7: Vsp (orange)
[Trouble symptom 3] Motor rotates for some time (several seconds), but then quickly stops, when the outdoor
unit operates.
(There is trouble in the system that provides feedback of motor rotation speed from the
motor to the outdoor unit controller.)
[Trouble symptom 4] Fan motor rotation speed does not change during outdoor unit operation.
[Trouble symptom 5] Fan motor rotation speed varies excessively during outdoor unit operation.
(Remedy for symptom 3 to 5)
It is not possible to identify whether the trouble is outdoor unit controller trouble or motor trouble.
Therefore, first replace the outdoor unit controller, then (if necessary) replace the DC motor.
54
9. REFRIGERANT R410A:
SPECIAL PRECAUTIONS WHEN SERVICING UNIT
9-1. Characteristics of New Refrigerant R410A
9-1-1. What is New Refrigerant R410A?
R410A is a new refrigerant that contains two types of pseudo-non-azeotropic refrigerant mixture. Its
refrigeration capacity and energy efficiency are about the same level as the conventional refrigerant, R22.
9-1-2. Components (mixing proportions)
HFC32 (50%) / HFC125 (50%)
9-1-3. Characteristics
Less toxic, more chemically stable refrigerant
The composition of refrigerant R410A changes whether it is in a gaseous phase or liquid phase. Thus, when
there is a refrigerant leak the basic performance of the air conditioner may be degraded because of a change in
composition of the remaining refrigerant. Therefore, do not add new refrigerant. Instead, recover the
remaining refrigerant with the refrigerant recovery unit. Then, after evacuation, totally recharge the specified
amount of refrigerant with the new refrigerant at its normal mixed composition state (in liquid phase).
When refrigerant R410A is used, the composition will differ depending on whether it is in gaseous or liquid
phase, and the basic performance of the air conditioner will be degraded if it is charged while the refrigerant is in
gaseous state. Thus, always charge the refrigerant while it is in liquid phase.
CAUTION
Ether-type oil is used for compressor oil for R410A-type units, which is different
from the mineral oil used for R22. Thus more attention to moisture prevention and
faster replacement work compared with conventional models are required.
55
9-2. Checklist before Servicing
Use a clutch-type flare tool for R410A or the conventional flare tool. Note that sizes of the resultant flares differ
between these two tools. Where a conventional flare tool is used, make sure to observe A Specification (amount of
extrusion) by using the flare spacer.
Diameter of tube D
Flare tool for R410A
Dia.1/4" (6.35 mm)
Specification A
Conventional flare tool (for R22)
0 to 0.0196"
Dia.3/8" (9.52 mm)
0.0472"
(0 to 0.5 mm)
Dia.1/2" (12.7 mm)
Dia.5/8" (15.88 mm)
(1.2 mm)
Size of flare
D
D
A
Spacer
A
Flare tool for R410A
Conventional flare tool (R22)
Tubing precautions
Refrigerant R410A is more easily affected by dust or moisture compared with R22, thus be sure to temporarily
cover the ends of the tubing with caps or tape prior to installation.
Never use 0.0276" (0.7 mm)-thick copper tubing or tubing which is less than 0.0315" (0.8 mm) in thickness, since
air conditioners with R410A are subject to higher pressure than those using R22 and R407C.
No addition of compressor oil for R410A
No additional charge of compressor oil is permitted.
No use of refrigerant other than R410A
Never use a refrigerant other than R410A.
If refrigerant R410A is exposed to fire
Through welding, etc., toxic gas may be released when R410A refrigerant is exposed to fire. Therefore, be sure
to provide ample ventilation during installation work.
Caution in case of R410A leak
Check for possible leak points with the special leak detector for R410A. If a leak occurs inside the room,
immediately provide thorough ventilation.
56
9-3. Tools Specifically for R410A
For servicing, use the following tools for R410A
Tool Distinction
Tool Name
Gauge manifold
Charging hose
Gas leak detector
Refrigerant cylinder
Charging cylinder
Refrigerant recovery unit
Tools specifically for R410A
Vacuum pump with anti-reverse flow (*1)
(Solenoid valve-installed type, which prevents oil from flowing back into the
unit when the power is off, is recommended.)
Vacuum pump (*2)...can be used if the following adapter is attached.
Vacuum pump adapter (reverse-flow prevention adapter) (*3).
(Solenoid valve-installed adapter attached to a conventional vacuum pump.)
Electronic scale for charging refrigerant
Flare tool
Tools which can be commonly used for R22,
R407C, and R410A
CAUTION
Bender
Torque wrench
Cutter, reamer
Welding tool, nitrogen gas cylinder
The above tools specifically for R410A must not be used for R22 and R407C.
Doing so will cause malfunction of the unit.
For the above vacuum pump (*1, *2) and vacuum pump adapter (*3), those for
R22-type units can be used for R410A-type. However, they must be used
exclusively for R410A and never alternately with R22 and R407C.
To prevent other refrigerants (R22, R407C) from being mistakenly charged to this unit, shape and external
diameter of the service port screw has been altered.
<External diameter of service port> R410A : 5/16"
R22, R407C : 1/4"
9-4. Tubing Installation Procedures
When the tubes are connected, always apply HAB oil on the flare portions to improve the sealing of tubing.
The following is the HAB oil generally used:
Esso: ZERICE S32
NOTE
For details on tubing installation procedures, refer to the installation manuals attached to the indoor
unit and outdoor unit.
57
9-5. In Case of Compressor Malfunction
CAUTION
Should the compressor malfunction, be sure to make the switch to a replacement
compressor as quickly as possible.
Use only the tools indicated exclusively for R410A.
for R410A."
See "9-3. Tools Specifically
9-5-1. Procedure for Replacing Compressor
(1) Recovering refrigerant
Any remaining refrigerant inside the unit should not be
released to the atmosphere, but recovered using the
refrigerant recovery unit for R410A.
(1) Recover refrigerant
OK
Do not reuse the recovered refrigerant, since it will contain
impurities.
(2) Replacing Compressor
Soon after removing seals of both discharge and suction
tubes of the new compressor, replace it quickly.
(2) Replace compressor
OK
(3) Checking for sealing
Use nitrogen gas for the pressurized gas, and never use a
refrigerant other than R410A. Also do not use oxygen or
any flammable gas.
(3) Check for sealing
OK
(4) Evacuation
Use a solenoid valve-installed vacuum pump so that
even if power is cut off in the middle of evacuation of air
due to a power interruption, the valve will prevent the
pump oil from flowing back.
(4) Evacuation
OK
The equipment may be damaged if moisture remains in
the tubing, thus carry out the evacuation thoroughly.
When using a vacuum pump with exhaust air volume more
than 0.883 cu.ft./min. and ultimate vacuum pressure rate
of 50 micron Hg.
Standard time for evacuation
Length of tubing
Evacuation time
Less than 33 ft. (10 m)
More than 10 minutes
More than 33 ft. (10 m)
More than 15 minutes
58
(5) Recharge
(5) Recharging
Configuration and characteristics of cylinders
Be sure to charge the specified amount of
refrigerant in liquid state using the service port
of the wide tube service valve. The proper
amount is listed on the unit's nameplate.
Valve
When the entire amount cannot be charged all at
once, charge gradually while operating the unit in
Cooling Operation.
CAUTION
Never charge a large amount
of liquid refrigerant at once to
the unit. This may cause
damage to the compressor.
Liquid
Single valve
Charge liquid refrigerant with
cylinder in up-side-down position.
When charging with a refrigerant cylinder, use an
electronic scale for charging refrigerant. In this
case, if the volume of refrigerant in the cylinder
becomes less than 20% of the fully-charged
amount, the composition of the refrigerant starts
to change. Thus, do not use the refrigerant if
the amount in the charging cylinder is less
than 20%.
Fig. 1
Valve
Also, charge the minimum necessary amount to
the charging cylinder before using it to charge
the air conditioning unit.
Example:
Liquid
In case of charging refrigerant to a unit requiring
1.68 lb. (0.76 Kg) using a capacity of a 22 lb. (10
Kg) cylinder, the minimum necessary amount for
the cylinder is:
Single valve (with siphon tube)
Charge with cylinder in normal position.
1.68 + 22 0.20 = 6.08 lb.
(0.76 + 10 0.20 = 2.76 Kg)
Fig. 2
For the remaining refrigerant, refer to the
instructions of the refrigerant manufacturer.
If using a charging cylinder, transfer the specified
amount of liquid refrigerant from the refrigerant
cylinder to the charging cylinder.
Prepare an evacuated charging cylinder
beforehand.
CAUTION
To prevent the composition
of R410A from changing,
never bleed the refrigerant
gas into the atmosphere
while transferring the
refrigerant. (Fig. 3)
NO!
Charging
cylinder
Liquid
Open
Do not use the refrigerant if the amount in the
charging cylinder is less than 20%.
59
Refrigerant
cylinder
Fig. 3
9-6. In Case Refrigerant is Leaking
CAUTION
Never attempt to charge additional refrigerant when refrigerant has been leaking
from the unit. Follow the procedure described below to locate points of leaks and
carry out repairs, then recharge the refrigerant.
(1) Detecting Leaks
Use the detector for R410A to locate refrigerant leak
points.
(2) Recovering refrigerant
(1) Detect leaks
OK
Never release the gas to the atmosphere; recover
residual refrigerant using the refrigerant recovery unit for
R410A, instead.
Do not reuse the recovered refrigerant because its
composition will have been altered.
(2) Recover refrigerant
OK
(3) Welding leaking points
Confirm again that no residual refrigerant exists in the unit
before starting welding.
Weld securely using flux and wax for R410A.
(3) Weld leaking points
OK
Prevent oxide film from forming inside the tubes utilizing
substitution with nitrogen (N2) in the refrigerant circuit of
the unit. Leave ends of tubes open during welding.
(4) Checking for sealing
(4) Check for sealing
Use nitrogen gas for the pressurized gas, and never use
a refrigerant other than R410A. Also do not use oxygen or
any flammable gas.
(5) Evacuation
Use a solenoid valve-installed vacuum pump so that
even if power is cut off in the middle of evacuation of air
due to a power interruption, the valve will prevent the
pump oil from flowing back.
The equipment may be damaged if moisture remains in
the tubing, thus carry out the evacuation thoroughly.
When using a vacuum pump with exhaust air volume
more than 0.883 cu.ft./min. and ultimate vacuum pressure
rate of 50 micron Hg.
Standard time for evacuation
Length of tubing
Evacuation time
Less than 33 ft. (10 m)
More than 10 minutes
More than 33 ft. (10 m)
More than 15 minutes
(6) Recharging
Recharge unit in the same manner explained on the
previous page "(5) Recharging."
60
OK
(5) Evacuation
OK
(6) Recharge
9-7. Charging Additional Refrigerant
9-7-1. When Tubes are Extended
Observe the proper amount of refrigerant as stated in this service manual or the installation manual that came
with the indoor unit. Charge additional refrigerant in liquid state only.
CAUTION
Never charge additional refrigerant if refrigerant is leaking from the unit. Follow
instructions given in "9-6. In Case Refrigerant is Leaking" and completely carry out
repairs. Only then should you recharge the refrigerant.
9-8. Retro-Fitting Existing Systems
9-8-1. Use of Existing Units
Never use new refrigerant R410A for existing units which use R22. This will cause the air conditioner to
operate improperly and may result in a hazardous condition.
9-8-2. Use of Existing Tubing
If replacing an older unit that used refrigerant R22 with a R410A unit, do not use its existing tubing. Instead,
completely new tubing must be used.
61
APPENDIX A INSTALLATION INSTRUCTIONS
CM1972
CM2472
CM3172
(II-852-6-4190-214-00-3)
A-1
07-156 CM-CLM1972-3172
6/6/07
9:35 AM
Page a
For Outdoor Unit
INSTALLATION INSTRUCTIONS
– Inverter Multi Split System Air Conditioner –
COOL / DRY Model
This air conditioner uses the new refrigerant R410A.
NOTE
Refrigerant service valve size = 5/16"
Contents
Model Combinations
Page
IMPORTANT!
Please Read Before Starting .................................. 2
Combine indoor and outdoor units only as listed
below.
1.
Indoor Unit
Outdoor Unit
KMS0772
CM1972
KMS0972
CM2472
KMS1272
CM3172
KMS1872
CLM1972
KMS2472
CLM2472
CLM3172
2.
3.
GENERAL .......................................................... 3
1-1. Tools Required for Installation (not supplied)
1-2. Accessories Supplied with Unit
1-3. Optional Copper Tubing Kit
1-4. Type of Copper Tube and Insulation Material
1-5. Additional Materials Required for Installation
INSTALLATION SITE SELECTION ................... 4
2-1. Indoor Unit
2-2. Connecting Indoor Units
2-3. Outdoor Unit
2-4 Baffle Plate for the Outdoor Unit
(CLM models only)
2-5. Outer Dimensions of Outdoor Unit
2-6. Diagram of Outdoor Unit Installation
INSTALLATION PROCESS .............................. 15
3-1. Embedding the Tubing and Wiring
3-2. Use of the Flaring Method
3-3. Flaring Procedure with a Flare Tool
3-4. Caution before Connecting Tubes Tightly
3-5. Tubing Connections
3-6. Insulation of Refrigerant Tubing
3-7. Taping the Tubes
3-8. Finishing the Installation
4.
AIR PURGING................................................... 18
I Air Purging with a Vacuum Pump (for Test Run)
I Pump Down
5.
WIRING INSTRUCTIONS ................................. 21
5-1. General Precautions on Wiring
5-2. Recommended Wire Length and Diameter
5-3. Wiring System Diagram
5-4. How to Connect Wiring to the Terminal
5-5. Wiring Instructions for the Outdoor Unit
6.
TEST RUN......................................................... 25
7.
CONNECTING A HOME AUTOMATION
DEVICE ............................................................. 26
8.
INSTALLATION CHECK SHEET ...................... 26
85264190214003 © SANYO 2007
Combine indoor and outdoor units only as listed in
the combination tables for 3-room or 4-room
outdoor unit as shown in its respective manual.
Power Source:
60 Hz, single-phase, 230 / 208 VAC
Be sure to read the yellow instruction sheet
attached to the outdoor unit for models using the
new refrigerant R410A.
Combination example
Indoor unit B
Indoor unit A
Indoor unit C
Outdoor unit
Indoor unit D
NOTE
The illustrations are based on the typical appearance of
a standard model. Consequently, the shape may differ
from that of the air conditioner that you are installing.
SANYO Commercial Solutions
A Division of SANYO North America Corporation
Cornerstone Business Park,
1062 Thorndale Avenue,
Bensenville, IL 60106, U.S.A.
In Canada
SANYO Canada Inc.
1-300 Applewood Crescent, Concord
Ontario, L4K 5C7, Canada
07-156 CM-CLM1972-3172
6/6/07
9:35 AM
Page 2
IMPORTANT!
Please Read Before Starting
When Installing…
…In a Ceiling or Wall
This air conditioning system meets strict safety and operating
standards. As the installer or service person, it is an important
part of your job to install or service the system so it operates
safely and efficiently.
Make sure the ceiling/wall is strong enough to hold the
unit’s weight. It may be necessary to construct a strong
wood or metal frame to provide added support.
…In a Room
For safe installation and trouble-free operation, you
must:
G Carefully read this instruction booklet before beginning.
G Follow each installation or repair step exactly as shown.
G Observe all local, state, and national electrical codes.
G Pay close attention to all warning and caution notices
given in this manual.
This symbol refers to a hazard
or unsafe practice which can
WARNING
result in severe personal injury
or death.
This symbol refers to a hazard
or unsafe practice which can
CAUTION
result in personal injury or product or property damage.
Properly insulate any tubing run inside a room to prevent
“sweating” that can cause dripping and water damage to
walls and floors.
…In Moist or Uneven Locations
Use a raised concrete pad or concrete blocks to provide a
solid, level foundation for the outdoor unit. This prevents
water damage and abnormal vibration.
…In an Area with High Winds
Securely anchor the outdoor unit down with bolts and a
metal frame. Provide a suitable air baffle.
…In a Snowy Area (for Heat Pump-type Systems)
Install the outdoor unit on a raised platform that is higher
than drifting snow. Provide snow vents.
If Necessary, Get Help
When Connecting Refrigerant Tubing
These instructions are all you need for most installation
sites and maintenance conditions. If you require help for a
special problem, contact our sales/service outlet or your
certified dealer for additional instructions.
• Use the flare method for connecting tubing.
• Apply refrigerant lubricant to the matching surfaces of
the flare and union tubes before connecting them, then
tighten the nut with a torque wrench for a leak-free
connection.
In Case of Improper Installation
The manufacturer shall in no way be responsible for improper installation or maintenance service, including failure to
follow the instructions in this document.
• Check carefully for leaks before starting the test run.
When Servicing
SPECIAL PRECAUTIONS
WARNING
•
•
•
•
• Turn the power OFF at the main power box (mains) before
opening the unit to check or repair electrical parts and
wiring.
When Wiring
ELECTRICAL SHOCK CAN CAUSE SEVERE
PERSONAL INJURY OR DEATH. ONLY A
QUALIFIED, EXPERIENCED ELECTRICIAN
SHOULD ATTEMPT TO WIRE THIS SYSTEM.
Do not supply power to the unit until all wiring and tubing
are completed or reconnected and checked.
Highly dangerous electrical voltages are used in this
system. Carefully refer to the wiring diagram and these
instructions when wiring. Improper connections and
inadequate grounding can cause accidental injury or
death.
Ground the unit following local electrical codes.
Connect all wiring tightly. Loose wiring may cause overheating at connection points and a possible fire hazard.
• Keep your fingers and clothing away from any moving
parts.
• Clean up the site after you finish, remembering to check
that no metal scraps or bits of wiring have been left inside
the unit being serviced.
Others
CAUTION
• Ventilate any enclosed areas when installing or testing
the refrigeration system. Escaped refrigerant gas, on
contact with fire or heat, can produce dangerously
toxic gas.
When Transporting
• Confirm upon completing installation that no refrigerant
gas is leaking. If escaped gas comes in contact with a
stove, gas water heater, electric room heater or other heat
source, it can produce dangerously toxic gas.
Be careful when picking up and moving the indoor and outdoor units. Get a partner to help, and bend your knees when
lifting to reduce strain on your back. Sharp edges or thin aluminum fins on the air conditioner can cut your fingers.
• Do not install only a single indoor unit.
2
07-156 CM-CLM1972-3172
6/6/07
9:35 AM
Page 3
1. General
This booklet briefly outlines where and how to install the
air conditioning system. Please read over the entire set
of instructions for the indoor and outdoor units and make
sure all accessory parts listed are with the system before
beginning. If the electric wiring diagram does not appear
in this manual, please check for the diagram on the
indoor unit.
5.
6.
7.
8.
9.
10.
11.
12.
13.
14.
15.
16.
17.
1-1. Tools Required for Installation (not supplied)
1. Standard screwdriver
2. Phillips head screwdriver
3. Knife or wire stripper
4. Tape measure
Carpenter’s level
Sabre saw or key hole saw
Hacksaw
Core bits
Hammer
Drill
Tube cutter
Tube flaring tool
Torque wrench
Adjustable wrench
Reamer (for deburring)
Vacuum pump (For R410A)
Manifold valve
1-2. Accessories Supplied with Unit
Table 1
Parts
Figure
Q’ty
Hex wrench
Labels for inter-unit
cable and tube
1
Parts
Figure
Cushion rubber
4
Parts
Reducer
(1/2" 3/8")
Figure
Q’ty
2472
1
3172
2
Packed in the outdoor unit.
Reducer
4 each (3/8" 1/2")
A B C D
Q’ty
1972
1
1-3. Optional Copper Tubing Kit
2.
Copper tubing for connecting the outdoor unit to the
indoor unit is available in kits which contain the narrow
and wide tubing, fittings and insulation. Consult your
nearest sales outlet or A/C workshop.
Foamed polyethylene insulation for the specified
copper tubes as required to precise length of tubing.
Wall thickness of the insulation should be not less
than 5/16" (8 mm).
3.
Use insulated copper wire for field wiring. Wire size
varies with the total length of wiring.
Refer to 5. Wiring Instructions for details.
1-4. Type of Copper Tube and Insulation Material
If you wish to purchase these materials separately from
a local source, you will need:
1.
CAUTION
Deoxidized annealed copper tube for refrigerant tubing as detailed in Table 2.
Cut each tube to the appropriate lengths 1' to 1'4"
(30 cm to 40 cm) to dampen vibration between units.
Table 2
Narrow Tube
Wide Tube
Model
Outer Dia.
Thickness
Outer Dia.
Thickness
KMS0772
1/4" (6.35 mm)
0.0314" (0.8 mm)
3/8" (9.52 mm)
0.0314" (0.8 mm)
KMS0972
1/4" (6.35 mm)
0.0314" (0.8 mm)
3/8" (9.52 mm)
0.0314" (0.8 mm)
KMS1272
1/4" (6.35 mm)
0.0314" (0.8 mm)
3/8" (9.52 mm)
0.0314" (0.8 mm)
KMS1872
1/4" (6.35 mm)
0.0314" (0.8 mm)
1/2" (12.70 mm)
0.0314" (0.8 mm)
KMS2472
1/4" (6.35 mm)
0.0314" (0.8 mm)
5/8" (15.88 mm)
0.0393" (1.0 mm)
3
Check local electrical codes
and regulations before
obtaining wire. Also, check
any specified instructions or
limitations.
07-156 CM-CLM1972-3172
6/6/07
9:35 AM
Page 4
1-5. Additional Materials Required for Installation
1.
2.
Refrigeration (armored) tape
Insulated staples or clamps for connecting wire
(See local codes)
Putty
Refrigeration lubricant
Clamps or saddles to secure refrigerant tubing
3.
4.
5.
Indoor unit
2. Installation Site Selection
2-1. Indoor Unit
WARNING
To prevent abnormal heat generation
and the possibility of fire, do not
place obstacles, enclosures and
grilles in front of or surrounding the
air conditioner in a way that may
block air flow.
Drain hose
Outside drainage
Fig. 1
AVOID:
G
direct sunlight.
G
nearby heat sources that may affect performance of the
unit.
G
areas where leakage of flammable gas may be expected.
G
placing or allowing any obstructions near the A/C inlet or
outlet.
G
installing in rooms that contain instant-on (rapid-start)
fluorescent lamps. (These may prevent the A/C from
receiving signals.)
G
places where large amounts of oil mist exist.
G
installing in locations where there are devices that
generate high-frequency emissions.
6" (15 cm)
min.
2" (5 cm)
min.
Front View
Fig. 2
INDOOR
UNIT (1)
Tubing length (L1)
Elevation
difference (H1)
INDOOR
UNIT (2)
L2
OUTDOOR
UNIT
H2
DO:
L3
G
select an appropriate position from which every corner of
the room can be uniformly cooled. (High on a wall is best.)
G
select a location that will hold the weight of the unit.
G
select a location where tubing and drain hose have the
shortest run to the outside. (Fig. 1)
G
G
2" (5 cm)
min.
H4
INDOOR
UNIT (4)
INDOOR
UNIT (3)
L4
H3
Fig. 3a
CAUTION
allow room for operation and maintenance as well as
unrestricted air flow around the unit. (Fig. 2)
Indoor unit
For stable operation of the
air conditioner, do not
install wall-mounted type
indoor units less than 5'
(1.5 m) from floor level.
install the unit within the maximum elevation difference
(H1, H2, H3, H4) above or below the outdoor unit and
within a total tubing length (L1+L2+L3, L1+L2+L3+L4)
from the outdoor unit as detailed in Table 3 and Fig. 3a.
Minimum height
from floor level
5' (1.5 m)
Floor level
Fig. 3b
4
Wall
07-156 CM-CLM1972-3172
6/6/07
9:35 AM
Page 5
G
Install the indoor unit more than 3.3' (1 m) away from any
antenna or power lines or connecting wires used for television, radio, telephone, security system, or intercom.
Electrical noise from any of these sources may affect
operation.
G
install in a sturdy manner to avoid increased operating
noise.
Table 3
Model
Max.
Allowable
Tubing Length
per unit
(ft.)
Max. Allowable Total
Tubing Length
at shipment
(L1+L2+L3) or
(L1+L2+L3+L4)
(ft.)
Limit of
Total Tubing Length
(L1+L2+L3) or
(L1+L2+L3+L4)
(ft.)
Limit of Elevation
Difference
(H1, H2, H3, H4)
(ft.)
Required Amount
of Additional
Refrigerant
(oz./ft.)*
CM1972/CLM1972
82
150 (L1+L2+L3)
150 (L1+L2+L3)
50
—
CM2472/CLM2472
82
150 (L1+L2+L3+L4)
200 (L1+L2+L3+L4)
50
0.22
CM3172/CLM3172
100
150 (L1+L2+L3+L4)
230 (L1+L2+L3+L4)
50
0.22
* If total tubing length becomes 150 to 200 ft. (Max.) or 150 to 230 ft. (Max.), charge additional refrigerant (R410A) by 0.22 oz./ft.
No additional charge of compressor oil is necessary. For more detailed charging information, refer to the Technical & Service Manual.
5
07-156 CM-CLM1972-3172
6/6/07
9:35 AM
Page 6
2-2. Connecting Indoor Units
(1) Connecting indoor unit for CM1972/CLM1972
(A)
Outdoor unit
Indoor unit
3/8"(9.52mm)
C
(KMS0772,KMS0972,KMS1272)
3/8"(9.52mm)
1/4"(6.35mm)
3/8"(9.52mm)
B
(KMS0772,KMS0972,KMS1272)
3/8"(9.52mm)
1/4"(6.35mm)
3/8"(9.52mm)
A
(KMS0772,KMS0972,KMS1272)
3/8"(9.52mm)
1/4"(6.35mm)
Fig. 4a
(B)
Outdoor unit
Indoor unit
3/8"(9.52mm)
C
(KMS0772,KMS0972,KMS1272)
3/8"(9.52mm)
1/4"(6.35mm)
3/8"(9.52mm)
B
(KMS0772,KMS0972,KMS1272)
3/8"(9.52mm)
1/4"(6.35mm)
1/2"(12.70mm)
A
(KMS1872)
3/8"(9.52mm)
1/4"(6.35mm)
Flare 3/8"(9.52mm) Union 1/2"(12.70mm)
A joint for connecting tubes of
different sizes
(3/8"(9.52mm) 1/2"(12.70mm)) Supplied Reducer
Fig. 4b
(2) Connecting indoor unit for CM2472/CLM2472
(A)
Outdoor unit
Indoor unit
3/8"(9.52mm)
D
3/8"(9.52mm)
(KMS0772,KMS0972,KMS1272)
1/4"(6.35mm)
3/8"(9.52mm)
C
3/8"(9.52mm)
(KMS0772,KMS0972,KMS1272)
1/4"(6.35mm)
3/8"(9.52mm)
B
3/8"(9.52mm)
(KMS0772,KMS0972,KMS1272)
1/4"(6.35mm)
3/8"(9.52mm)
A
1/2"(12.70mm)
Flare 1/2"(12.70mm)
(1/2"(12.70mm)
(KMS0772,KMS0972,KMS1272)
1/4"(6.35mm)
Union 3/8"(9.52mm)
3/8"(9.52mm)) Supplied Reducer
Fig. 4c
6
07-156 CM-CLM1972-3172
6/6/07
9:35 AM
Page 7
(B)
Outdoor unit
Indoor unit
3/8"(9.52mm)
D
(KMS0772,KMS0972,KMS1272)
3/8"(9.52mm)
1/4"(6.35mm)
3/8"(9.52mm)
C
(KMS0772,KMS0972,KMS1272)
3/8"(9.52mm)
1/4"(6.35mm)
3/8"(9.52mm)
B
(KMS0772,KMS0972,KMS1272)
3/8"(9.52mm)
1/4"(6.35mm)
1/2"(12.70mm)
A
(KMS1872)
1/2"(12.70mm)
1/4"(6.35mm)
Fig. 4d
(C)
Outdoor unit
Indoor unit
3/8"(9.52mm)
D
(KMS0772,KMS0972,KMS1272)
3/8"(9.52mm)
1/4"(6.35mm)
3/8"(9.52mm)
C
(KMS0772,KMS0972,KMS1272)
3/8"(9.52mm)
1/4"(6.35mm)
3/8"(9.52mm)
B
(KMS0772,KMS0972,KMS1272)
3/8"(9.52mm)
1/4"(6.35mm)
5/8"(15.88mm)
A
(KMS2472)
1/2"(12.70mm)
1/4"(6.35mm)
Flare 1/2"(12.70mm)
Union 5/8"(15.88mm)
(1/2"(12.70mm)
5/8"(15.88mm)) Locally purchased
Fig. 4e
(D)
Outdoor unit
Indoor unit
3/8"(9.52mm)
D
3/8"(9.52mm)
(KMS0772,KMS0972,KMS1272)
1/4"(6.35mm)
3/8"(9.52mm)
C
3/8"(9.52mm)
(KMS0772,KMS0972,KMS1272)
1/4"(6.35mm)
1/2"(12.70mm)
B
(KMS1872)
3/8"(9.52mm)
1/4"(6.35mm)
5/8"(15.88mm)
A
1/2"(12.70mm)
Flare 1/2"(12.70mm)
(KMS2472)
1/4"(6.35mm)
Union 5/8"(15.88mm)
(1/2"(12.70mm) 5/8"(15.88mm))
Locally purchased
Flare 3/8"(9.52mm)
Union 1/2"(12.70mm)
(3/8"(9.52mm) 1/2"(12.70mm))
Locally purchased
Fig. 4f
7
07-156 CM-CLM1972-3172
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9:35 AM
Page 8
(3) Connecting indoor unit for CM3172/CLM3172
(A)
Outdoor unit
Indoor unit
3/8"(9.52mm)
D
(KMS0772,KMS0972,KMS1272)
3/8"(9.52mm)
1/4"(6.35mm)
3/8"(9.52mm)
C
(KMS0772,KMS0972,KMS1272)
3/8"(9.52mm)
1/4"(6.35mm)
3/8"(9.52mm)
B
(KMS0772,KMS0972,KMS1272)
1/2"(12.70mm)
1/4"(6.35mm)
3/8"(9.52mm)
A
(KMS0772,KMS0972,KMS1272)
1/2"(12.70mm)
1/4"(6.35mm)
Flare 1/2"(12.70mm)
Union 3/8"(9.52mm)
(1/2"(12.70mm)
3/8"(9.52mm)) Supplied Reducer
Fig. 4g
(B)
Outdoor unit
Indoor unit
3/8"(9.52mm)
D
(KMS0772,KMS0972,KMS1272)
3/8"(9.52mm)
1/4"(6.35mm)
3/8"(9.52mm)
C
(KMS0772,KMS0972,KMS1272)
3/8"(9.52mm)
1/4"(6.35mm)
3/8"(9.52mm)
B
(KMS0772,KMS0972,KMS1272)
1/2"(12.70mm)
1/4"(6.35mm)
1/2"(12.70mm)
A
(KMS1872)
1/2"(12.70mm)
1/4"(6.35mm)
Flare 1/2"(12.70mm)
(1/2"(12.70mm
Union 3/8"(9.52mm)
3/8"(9.52mm)) Supplied Reducer
Fig. 4h
(C)
Outdoor unit
Indoor unit
3/8"(9.52mm)
D
3/8"(9.52mm)
(KMS0772,KMS0972,KMS1272)
1/4"(6.35mm)
3/8"(9.52mm)
C
3/8"(9.52mm)
(KMS0772,KMS0972,KMS1272)
1/4"(6.35mm)
1/2"(12.70mm)
B
1/2"(12.70mm)
(KMS1872)
1/4"(6.35mm)
1/2"(12.70mm)
A
1/2"(12.70mm)
(KMS1872)
1/4"(6.35mm)
Fig. 4i
8
07-156 CM-CLM1972-3172
6/6/07
9:35 AM
Page 9
(D)
Outdoor unit
Indoor unit
3/8"(9.52mm)
D
(KMS0772,KMS0972,KMS1272)
3/8"(9.52mm)
1/4"(6.35mm)
3/8"(9.52mm)
C
(KMS0772,KMS0972,KMS1272)
3/8"(9.52mm)
1/4"(6.35mm)
3/8"(9.52mm)
B
(KMS0772,KMS0972,KMS1272)
1/2"(12.70mm)
1/4"(6.35mm)
5/8"(15.88mm)
A
(KMS2472)
1/2"(12.70mm)
1/4"(6.35mm)
Flare 1/2"(12.70mm) Union 5/8"(15.88mm)
Flare 1/2"(12.70mm)
(1/2"(12.70mm) 5/8"(15.88mm))
Locally purchased
Union 3/8"(9.52mm)
(1/2"(12.70mm) 3/8"(9.52mm))
Supplied Reducer
Fig. 4j
(E)
Outdoor unit
Indoor unit
3/8"(9.52mm)
D
3/8"(9.52mm)
(KMS0772,KMS0972,KMS1272)
1/4"(6.35mm)
3/8"(9.52mm)
C
3/8"(9.52mm)
(KMS0772,KMS0972,KMS1272)
1/4"(6.35mm)
1/2"(12.70mm)
B
1/2"(12.70mm)
(KMS1872)
1/4"(6.35mm)
5/8"(15.88mm)
A
(KMS2472)
1/2"(12.70mm)
1/4"(6.35mm)
Flare 1/2"(12.70mm)
(1/2"(12.70mm)
Union 5/8"(15.88mm)
5/8"(15.88mm)) Locally purchased
Fig. 4k
9
6/6/07
9:35 AM
Page 10
2-3. Outdoor Unit
NO
AVOID:
G
heat sources, exhaust fans, etc. (Fig. 5a)
G
damp, humid or uneven locations.
Exhaust fan
Hot air
Heat source
DO:
Obstacle above
G
choose a place as cool as possible.
G
choose a place that is well ventilated.
G
allow enough room around the unit for air intake/
exhaust and possible maintenance. (Fig. 5b)
G
provide a solid base (level concrete pad, concrete block,
6" × 1'4" (15 × 40 cm) beams or equal), a minimum of 6"
(15 cm) above ground level to reduce humidity and
protect the unit against possible water damage and
decreased service life. (Figs. 5c and 5d)
CAUTION
Air discharge
Outdoor unit
Fig. 5a
Air intake
Min.
4" (10 cm)
Min. 6" (15 cm)
Air discharge
Min.
Min.
7' (2 m) 7' (2 m)
Obstacle
07-156 CM-CLM1972-3172
Valve
side
Min. 10"
(25 cm)
Min.
1’8" (50 cm)
Fig. 5b
A solid base must not cover
the hole of the bottom plate.
Ground Min. 6" (15 cm)
Air intake
Drain holes
G
Install cushion rubber under unit’s feet to reduce vibration
and noise. (Fig. 5e)
G
use lug bolts or equal to bolt down unit, reducing vibration
and noise.
G
Install in a location where no antenna of a television or
radio exists within 10' (3 m).
Fig. 5c
Anchor bolts
(4 pcs.)
Min. 6" (15 cm)
Air intake
2-4. Baffle Plate for the Outdoor Unit
(CLM models only)
Concrete
or equal
NOTE
It is recommended to use baffle plates for models
CLM1972, CLM2472 and CLM3172. The baffle plates are
not normally required for the other models.
Ab
ou
t1
6"
" (15
(40
t6
Abou
cm
)
cm)
Fig. 5d
When the outdoor unit is installed in a position exposed to
strong wind (such as seasonal winds with low air temperature in winter), baffle plates must be installed on the outdoor
unit. (Fig. 5f)
This unit is designed so that the fan of the outdoor unit runs
at low speed when the air conditioner is operated at low
outdoor air temperatures. When the outdoor unit is exposed
to strong wind, the system pressure drops because of the
freeze protector.
Install a pair of windbaffle plates at the front and back of the
outdoor unit if it will be subject to strong wind during the
winter. (Figs. 5f, 5g, 5h, 5i, and 5j)
Cushion rubber
Fig. 5e
Air intake baffle
Front
Wind
Back
Wind
Air discharge baffle
No air intake baffle required on this side.
10
Fig. 5f
07-156 CM-CLM1972-3172
6/6/07
9:35 AM
Page 11
(1) Recommended dimensions of the baffle plates
Air Intake Baffle
Air Discharge Baffle
H
O
A
2(2-
15/64"
6 mm)
I
J
B
H
C
J
3(3-
K
1/4"
6.5 mm)
G
4(4-
1/4"
6.5 mm)
C
R
L
E
Q
I
D
A
K
E
G
F
F
D
B
G
Fig. 5g
Fig. 5h
For Air Intake
Dimensions
Model
A
B
C
D
(inch) 25-3/16 25/32 1-31/32
CLM1972,
CLM2472
(mm)
640
20
(inch) 25-3/16 25/32
CLM3172
(mm)
50
25
635
E
F
10-5/8 10-5/8
270
270
G
H
I
J
K
25/64
25/32
19/32
25-7/8
19/64
15
657
7.5
10
1-3/8 30-29/32 13-25/32 13-25/32 25/64
20
25/32
19/32 31-25/32 19/64
640
20
35
785
350
350
10
20
15
807
7.5
A
B
C
D
E
F
G
H
I
J
K
L
O
Q
25/64 5-29/32 25/32
10
150
20
25/64 5-29/32 25/32
10
150
20
R
25/32
20
25/32
20
For Air Discharge
Dimensions
Model
CLM1972, 2472,
3172
(inch) 22-1/16 23-1/32 13-25/32 5-29/32 19-9/32 1-3/8
(mm)
560
585
350
150
490
35
2-5/32 18-5/16 2-3/8 3-11/32 31/32
55
465
60
85
25
Material to be used: Metal plate with corrosion protection treatment
Plate thickness:
0.0394 to 0.0472" (1.0 to 1.2 mm)
(2) Parts required (field supply except for screws)
Air Intake Baffle
Air Discharge Baffle
Item
Q’ty
Item
Remarks
Q’ty Remarks
Baffle plate
1
Bolt 15/64 × 13/32 – 19/32" (M6 × 10 – 15 mm)
4
3
Nut 15/64" (M6)
4
Nut 15/64" (M6)
3
Washer
4
Washer
3
Spring washer
4
Spring washer
3
Baffle plate
1
Screw 5/32 × 15/32" (4 × 12 mm) tapping
2
Bolt 15/64 × 19/32 – 25/32" (M6 × 15 – 20 mm)
Attached to outdoor unit
11
07-156 CM-CLM1972-3172
6/6/07
9:35 AM
Page 12
(3) Installation procedure
1. Air Intake Baffle
2. Air Discharge Baffle
(1) Left side
1. Remove the panels front, top, side L and R from the
unit and drill 4 holes of ø1/4 inch (6.5 mm) at the
prescribed positions.
1. Remove the top panel from the unit.
2. Remove the panel side L, and drill 3 holes of ø1/4 inch
(6.5 mm) at the prescribed position.
2. Install the windbaffle on the unit using field supply
bolts and nuts.
3. Install the windbaffle on the unit using field supply bolts
and nuts.
3. Recommended bolts to be used are 15/64" (M6 ISO
standard), and the recommended length of the bolts
is between 13/32 – 19/32 inch (10 – 15 mm).
4. Recommended bolts to be used are 15/64" (M6 ISO
standard), and the recommended length of the bolts is
between 19/32 – 25/32 inch (15 – 20 mm).
4. Use washers and spring washers to tightly fasten the
windbaffle to the unit.
5. Use washers and spring washers to tightly fasten the
windbaffle to the unit.
(2) Right side
1. Remove the top panel from the unit.
2. Use 2 preholes on the panel side R to install the baffle
plate.
3. Remove the panel side R from the unit by removing the
screws. These screws are used in step 4 below.
4. Put (sandwich) the windbaffle between the unit and the
panel side R, then install the windbaffle on the unit using
the above screws. Be careful not to damage the screw
holes.
Panel top
Panel side R
Panel top
Panel front
Panel side R
Panel front
Panel side L
Panel side L
Fig. 5i
Fig. 5j
NOTE
G
In order to prevent contact of the bolts and heat exchanger and other parts inside the unit, install the windbaffle using
bolts from inside the unit and fasten the bolts with nuts from outside the unit.
G
When the windbaffle is installed on the unit, the unit has higher wind resistance. In order to prevent the unit from
falling over, anchor the legs of the unit using anchor bolts (or similar method).
(4) Precautions for installation
1. Be sure not to damage painted surfaces.
2. Finish the edges of the windbaffle to avoid cuts or injury.
3. Drilling of holes must be carefully done so that no damage is caused to external or internal parts of the unit.
Particular care must be taken that drill chips do not drop into the unit.
12
07-156 CM-CLM1972-3172
6/6/07
9:35 AM
Page 13
2-5. Outer Dimensions of Outdoor Unit
(1) CM1972/CLM1972
5-11/32
15/32
A
2-29/32
13-19/32
14-17/32
Service valve on narrow tube side
(Outer diameter 1/4"(6.35))
2-1/16
2-3/4
2-3/4
2-15/16
2-1/32
4-1/2
4-7/16
1-13/16
Service valve on wide tube side
(Outer diameter 3/8"(9.52))
2-27/32
23/32
29-1/8 (740)
A
12-19/32
35-7/16 (900)
5-29/32
23-15/16
Fig. 6a
(2) CM2472/CLM2472
A
5-11/32
15/32
2-29/32
Service valve on narrow tube side
(Outer diameter 1/4"(6.35))
2-15/16
2-3/4
2-3/4
Service valve on wide tube side
(Outer diameter 3/8"(9.52))
1-13/16
2-1/16
4-7/16
2-27/32
5-29/32
23/32
29-1/8 (740)
14-17/32
13-19/32
A
35-7/16 (900)
12-19/32
23-15/16
2-1/32
4-1/2
Service valve on wide tube side
(Outer diameter 1/2"(12.70))
2-13/32
Fig. 6b
(3) CM3172/CLM3172
A
2-29/32
1-13/16
2-1/16
2-1/32
4-1/2
2-15/16
2-3/4
2-3/4
Service valve on wide tube side
(Outer diameter 3/8"(9.52))
2-27/32
5-29/32
35-1/32 (890)
Service valve on narrow tube side
(Outer diameter 1/4"(6.35))
23/32
A
35-7/16 (900)
4-7/16
5-11/32
15/32
12-19/32
13-19/32
14-17/32
23-15/16
Service valve on wide tube side
(Outer diameter 1/2"(12.70))
2-13/32
Fig. 6c
13
unit: inch (mm)
07-156 CM-CLM1972-3172
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Page 14
2-6. Diagram of Outdoor Unit Installation
Never install only a single indoor unit.
Be sure to connect indoor and outdoor units only in
combinations that are listed in the catalog or in the
combination table that was provided with the outdoor unit.
(Use caution. Connecting any other model may result in
operation failure and malfunction.)
Indoor unit D
The dimensions indicated by
in the figure below are
spaces that are required in order to maintain
performance. Install in a location where the dimensions
indicated by
are ensured, and where 2 or more faces
of the unit are unobstructed. In principle, the top direction
should be unobstructed.
Indoor unit B
)
cm
"(20
r8
Ove
Indoor unit C
Indoor unit A
Service space
Ov
er 4
"(1
Power breaker
0cm
)
Ov
er 1
0"(
Ensure 6"(15cm)
of space if a
drain hose is to
be used.
25c
m)
Access panel C
m)
50c
8"(
r 1'
e
Ov
D
C
B
A
Base (not provided)
(concrete or similar material)
Ground
wire
(not
provided)
Fasten with anchor bolts
(not provided)
(3/8" or M10, 4 locations)
Fig. 7
14
07-156 CM-CLM1972-3172
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Page 15
3. Installation Process
3-1. Embedding the Tubing and Wiring
G
Do not connect tubes to locations that are embedded.
G
Be sure to bind refrigerant tubing and inter-unit cables
together with vinyl tape.
G
The power cable must be obtained on-site.
(#12: Less than 85 ft.)
# ... AWG (American Wire Gauge)
G
Be sure to apply the provided labels to both ends of
the inter-unit cables to prevent miswiring.
G
Securely seal the end of embedded tubing with vinyl
tape in order to prevent dirt or moisture entry.
G
In order to prevent insulation breakdown and ground
faults, do not allow the wire ends to contact rainwater,
or be subject to dew condensation.
3-2. Use of the Flaring Method
Deburring
Many of the conventional split system air conditioners
employ the flaring method to connect refrigerant tubes
which run between indoor and outdoor units. In this
method, the copper tubes are flared at each end and
connected with flare nuts.
After
Before
3-3. Flaring Procedure with a Flare Tool
(1) Cut the copper tube to the required length with a
tube cutter. It is recommended to cut approx. 12" to
20" (30 to 50 cm) longer than the tubing length you
estimate.
Fig. 8
(2) Remove burrs at the end of the copper tube with a
tube reamer or file. This process is important and
should be done carefully to make a good flare.
(Fig. 8)
15
07-156 CM-CLM1972-3172
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Page 16
NOTE
Copper
tubing
When reaming, hold the tube end downward and be sure that
no copper scraps fall into the tube. (Fig. 9)
(3) Remove the flare nut from the unit and be sure to mount
it on the copper tube.
Reamer
(4) Make a flare at the end of copper tube with a flare tool.*
(Figs. 10 and 11)
(*Use “RIGID” or equivalent.)
Fig. 9
If the previous flare tool
(clutch-type) is used:
If the special R410A
flare tool is used:
NOTE
A good flare should have the following characteristics:
G
inside surface is glossy and smooth.
G
edge is smooth.
G
tapered sides are of uniform length.
0 to 0.0196"
(0 to 0.5 mm)
0.0472" (1.2 mm)
Adjust so that the amount of tube
protrusion is as shown in the figure.
Fig. 10
3-4. Caution before Connecting Tubes Tightly
a)
b)
c)
Be sure to apply a sealing cap or water-proof tape to
prevent dust or water from getting into the tubes before
they are used.
Flare nut
Copper
tubing
Be sure to apply refrigerant lubricant to the matching
surfaces of the flare and union before connecting them
together. This is effective for reducing gas leaks.
(Fig. 12)
Flare tool
Fig. 11
For proper connection, align the union tube and flare
tube straight with each other, then screw in the flare nut
lightly at first to obtain a smooth match. (Fig. 13)
Apply refrigerant
lubricant here and here
3-5. Tubing Connections
Fig. 12
a)
Temporary connection:
Screw in 3 – 5 rotations by hand. (Fig.14)
b)
To fasten the flare nuts, apply specified torque as:
Table 4
Tube Dia.
Tightening Torque
Union
1/4" (6.35 mm)
Approx. 120 – 160 lbs·in (140 – 180 kgf·cm)
3/8" (9.52 mm)
Approx. 300 – 360 lbs·in (340 – 420 kgf·cm)
1/2" (12.70 mm)
Approx. 430 – 540 lbs·in (490 – 610 kgf·cm)
5/8" (15.88 mm)
Approx. 590 – 710 lbs·in (680 – 820 kgf·cm)
Flare nut
Fig. 13
Service valve on
narrow tube side
Service valve on
wide tube side
Fig. 14
16
D
C
B
A
Apply the provided labels
to the indoor and outdoor
unit tubing connectors to
prevent errors in
connections.
07-156 CM-CLM1972-3172
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CAUTION
9:35 AM
Page 17
Torque wrench
Be sure to match refrigerant
tubing and electric wiring
between indoor and outdoor
units. For more details, refer to
“Tubing Check Control” in the
Technical & Service Manual.
Spanner
Indoor unit
Outdoor unit
Fig. 15
3-6. Insulation of Refrigerant Tubing
IMPORTANT
To prevent heat loss and wet floors due to dripping of condensation, both tubes must be well insulated with a
proper insulation material.
The thickness of the insulation should be a minimum 5/16"
(8 mm). (Fig. 17)
Insulation
Fig. 16
Insulation
3-7. Taping the Tubes
CAUTION
Thickness:
min. 5/16"
(8 mm)
Min.
5/16"
(8 mm)
After a tube has been insulated,
never try to bend it into a
narrow curve, as this may
cause the tube to break or
crack.
Fig. 17
(1) At this time, the 2 refrigerant tubes (and electrical wire
if local codes permit) should be taped together with
armoring tape. The drain hose may also be included
and taped together as 1 bundle with the tubing.
Clamp
(2) Wrap the armoring tape from the bottom of the outdoor
unit to the top of the tubing where it enters the wall. As
you wrap the tubing, overlap half of each previous tape
turn. (Fig. 18)
(3) Clamp the tubing bundle to wall, using 1 clamp approx.
every 47" (120 cm).
Insulated tubes
Fig. 18
NOTE
Do not wind the armoring tape too tightly, since this will
decrease the heat insulation effect. Also, be sure the condensation drain hose splits away from the bundle and drips
clear of the unit and the tubing.
Apply putty here
3-8. Finishing the Installation
Tubing
After finishing insulating and taping over the tubing, use
sealing putty to seal off the hole in the wall to prevent rain
and draft from entering. (Fig. 19)
Fig. 19
17
07-156 CM-CLM1972-3172
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Page 18
4. Air Purging
Air and moisture remaining in the refrigerant
system have undesirable effects as indicated
below. Therefore, they must be purged completely.
G
pressure in the system rises
G
operating current rises
G
cooling efficiency drops
G
moisture in the air may freeze and block
capillary tubing
G
water may lead to corrosion of parts in the
refrigerant system
I
G
Air Purging with a Vacuum Pump
(for Test Run)
Service
valve on
narrow
D
C
B
A
Service
valve on
wide tube
side
Manifold gauge
(special for R410A)
High-pressure valve
Low-pressure
Vacuum pump
valve
adapter
Lo
Hi
(for preventing
Leave the
reverse flow)
valve open.
(special for
Open
R410A)
Hex wrench
Charging hose
(special for R410A)
With push-pin
Fig. 20
In order to protect the earth’s environment, be sure to use
a vacuum pump to perform the air purge.
(Never perform an air purge by using the refrigerant gas
cylinder or other external gas, or by using the gas inside
the outdoor unit.)
CAUTION
In order to prevent charging errors with
A/C that uses R410A, the screw diameter
at the service valve charging port has
been changed. When recharging or performing other servicing, use the special
charging hose and manifold gauge.
Perform the air purge for tubes A, B, C, and D. Use the
same procedures for all tubes.
Stopper
Spindle
Service port
Screw diameter: 1/2
UNF 20 threads
(1) Check that each tube (both narrow and wide tubes)
between the indoor and outdoor units have been
properly connected and all wiring for the test run has
been completed. Note that both narrow and wide tube
service valves on the outdoor unit are kept closed at
this stage.
Cap nut tightening torque:
60 – 95 lbs·in
(70 – 110 kgf·cm)
(Tighten by hand, then use a
wrench to turn approximately 30 .)
(3) Connect a vacuum pump and a manifold valve (with
pressure gauges) to the service port on the wide tube
service valve. (Fig. 20).
CAUTION
Cap tightening torque:
170 – 215 lbs·in
(200 – 250 kgf·cm)
(Tighten by hand, then
use a wrench to turn.)
Valve core
(2) Using an adjustable wrench or box wrench, remove
the valve caps from the service valve on both narrow
and wide tubes.
CAUTION
Vacuum
pump
<Structure of service valve on wide tube side>
NOTE
External diameter of service port
R410A: 5/16"
Fig. 21
Before using the vacuum pump
adapter, read the vacuum pump
adapter manual, and use the
adapter correctly.
Be sure to use a manifold valve for
air purging. If it is not available,
use a stop valve for this purpose.
The “Hi” knob of the manifold
valve must always be kept closed.
18
G
When using a hex wrench to open the spindle, an
extremely small amount of refrigerant may leak.
This does not indicate a problem.
G
Use a hex wrench of a type to which force can be
easily applied.
07-156 CM-CLM1972-3172
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9:35 AM
Page 19
(4) With the “Lo” knob of the manifold valve open and
high-pressure valve (“Hi”) closed completely, run
the vacuum pump. Run the pump until the pressure is –101 kPa (–76 cmHg). The operation time
for the vacuum pump varies with tubing length and
the capacity of the pump. The following table
shows the amount of time required for evacuation:
Table 5
Required time for evacuation when capacity
of 100 liter/h vacuum pump is used
20 min. or more
NOTE
The required time in the above table is calculated
based on the assumption that the ideal (or target)
vacuum condition is around 10 mmHg abs.
(5) With the vacuum pump still running, close the “Lo”
knob of the manifold valve. Then stop the vacuum
pump. Fully close the low-pressure valve and stop
the vacuum pump. (Wait 1 – 2 minutes and check
that the manifold gauge pointer does not return. If
it does return, find and repair the leak, then apply
the vacuum again.)
(6) With a hex wrench, turn the valve stem on the narrow tube service valve counter-clockwise by 90
degrees (1/4 turn) for 10 seconds, and then turn
the stem clockwise to close it again.
CAUTION
Be sure to completely insert
the hex wrench before
attempting to turn the valve.
(7) With a standard screwdriver, turn the wide tube
service valve stem counterclockwise to fully open
the valve.
(8) Turn the narrow tube service valve stem counterclockwise to fully open the valve.
(9) Loosen the vacuum hose connected to the wide
tube service port slightly to release the pressure.
Then, remove the hose.
(10) Leak test all joints at the tubing (both indoor and
outdoors) with liquid soap. Bubbles indicate a leak.
Be sure to wipe off the soap with a clean cloth.
CAUTION
If a CFC gas detector is used,
use a special detector for HFC
refrigerant (such as R410 and
R134a).
19
07-156 CM-CLM1972-3172
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9:35 AM
Page 20
(11) Replace the flare nut on the wide tube service port and fasten the flare nut securely with an adjustable wrench or
box wrench. Next, mount the valve cap and tighten it with a torque wrench (the cap needs to be tightened with the
torque of 180 lbs·in (200 kgf·cm)). This process is very important to prevent gas from leaking from the system.
(12) Test run the air conditioner. (See page 25.)
(13) While the air conditioner is running, apply liquid soap to check for any gas leaks around the service valves or caps.
(14) If there is no leakage, stop the air conditioner.
(15) Wipe off the soap on the tubing.
This completes air purging with a vacuum pump and the air conditioner is ready for actual operation.
I
Pump Down
In order to protect the earth’s environment, be sure to perform pump-down to recover refrigerant
gas without releasing it into the atmosphere.
G
When relocating or disposing of the A/C, request this service from
the dealer where the unit was purchased, or from an appropriate
agent. Perform pump-down as described below.
Close
D
Narrow tube side
Close
C
What is pump-down?
G Pump-down refers to recovering the refrigerant gas from the refrigerant cycle at the outdoor unit. This work must be performed during cooling operation. The refrigerant gas cannot be recovered
during heating operation.
G During winter, or if the temperature sensor prevents cooling operation, perform “forced cooling operation.”
Close
B
Charging port
Close
A
Fig. 22
Pump-down procedure
(1) Fully close the spindles at the valves on the narrow tube side of
tubes A, B, C and D. (Refer to Fig. 22.)
(2) Connect the manifold gauge to the charging port at the valve on
the wide tube side of tube D. Purge the air from the charging hose.
(Refer to Fig. 23.)
(3) Perform cooling operation or forced cooling
operation.
When the pressure at the low-pressure side is 0.15 – 0.2 MPa
(0.5 – 1 kg/cm2G), fully close the spindles at the valves on the
wide tube side of tubes A, B, C, and D, and immediately stop
operation. (Refer to Fig. 23.)
In the winter, the outdoor unit may stop after 5 - 10 minutes of
operation. This is in order to protect the indoor unit heat
exchanger from freezing and does not indicate a problem.
D
C
Wide tube side
B
A
Manifold gauge
Fig. 23
Cap
(4) Disconnect the manifold gauge and the inter-unit tubes, and
attach the caps and flare nuts. At this point, pump-down is completed. (If the caps and flare nuts are not reattached, there is the
danger of gas leakage.) (Refer to Fig. 24.)
Cap
If pump-down is not possible
If the A/C cannot be operated because of a malfunction or other
cause, use a refrigerant recovery device to recover the refrigerant.
Cap
20
After disconnecting
the inter-unit tubes,
attach the flare nuts
with flare bonnets.
Cap
Fig. 24
07-156 CM-CLM1972-3172
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9:35 AM
Page 21
5. Wiring Instructions
5-1. General Precautions on Wiring
(1) Before wiring, confirm the rated voltage of the unit as
shown on its nameplate, then carry out the wiring
closely following the wiring diagram.
(2) Provide a power outlet to be used exclusively for each
unit, with a power supply disconnect and circuit breaker for overcurrent protection provided in the exclusive
line.
(3) To prevent possible hazard due to insulation failure,
the unit must be grounded.
(4) Each wiring connection must be done tightly and in
accordance with the wiring system diagram. Wrong
wiring may cause the unit to misoperate or become
damaged.
(5) Do not allow wiring to touch the refrigerant tubing,
compressor, or any moving parts of the fan.
(6) Unauthorized changes in the internal wiring can be
very dangerous. The manufacturer will accept no
responsibility for any damage or misoperation that
occurs as a result of such unauthorized changes.
5-2. Recommended Wire Length and Diameter
Regulations on wiring diameter differ from locality to locality.
For field wiring requirements, please refer to your local electrical codes. Carefully observe these regulations when carrying out the installation.
Table 6 shows maximum wire lengths for control line and
power line and fuse or circuit capacity.
NOTE
Refer to the wiring system diagram (Fig. 25a or 25b) for the
meaning of (A), (B), and (C) in Table 6.
Refer to your local codes or in the absence of local codes
see the National Electric Code: ANSI/NFPA70.
Table 6
AWG
Model
Max. Power Line Length (ft.)
(A)
Max. Control Line Length (ft.)
(B) (C)
(#12)
(#14)
Fuse
or
Circuit Capasity
CM1972 / CLM1972
85 (Max.)
82 (Max.)
20 A
CM2472 / CLM2472
85 (Max.)
82 (Max.)
20 A
CM3172 / CLM3172
85 (Max.)
100 (Max.)
20 A
# ... AWG (American Wire Gauge)
21
07-156 CM-CLM1972-3172
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Page 22
WARNING
G
G
G
G
WARNING
G
Be sure to comply with local codes on running the
wire from the indoor unit to the outdoor unit (size
of wire and wiring method, etc.).
Each wire must be firmly connected.
No wire should be allowed to touch refrigerant
tubing, the compressor, or any moving part.
Be sure to connect power wires correctly matching up numbers on terminals of the outdoor unit
and respective indoor units A – D.
G
G
G
To avoid the risk of electric shock, each air
conditioner unit must be grounded.
For the installation of a grounding device, please
observe local electrical codes.
Grounding is necessary, especially for units using
inverter circuits, in order to release charged
electricity and electrical noise caused by high
tension. Otherwise, electrical shock may occur.
Place a dedicated ground more than 7' (2 m) away
from other grounds and do not have it shared with
other electric appliances.
CAUTION
Disconnect switch may be required by national
or local codes.
CAUTION
Always comply with national and local code
requirements.
5-3. Wiring System Diagram
4 indoor units with CM2472/CLM2472, CM3172/CLM3172
(C) (B)
Grounding
line
Field supply
(B)
6
230/208V
7
230/208V
8
9
2
230/208V
(B)
(C)
Grounding
line
Terminal
(2P)
1
INDOOR UNIT
Terminal
3
(B)
(C)
Terminal(12P)
230/208V
1
Grounding line
* Disconnect
switch
Field supply
1
2
OUTDOOR UNIT
230/208V
2
230/208V
(C)
3
(B)
(B)
4
230/208V
3
5
230/208V
6
(B)
Grounding line
*
(C)
1
(D)
(A)
230/208V
3
230/208V
Fig. 25a
8
(C)
9
(B)
Grounding
line
230/208V
Disconnect switch
Field supply
10
11
(B)
1
12
230/208V
2
3
7
230/208V
2
*
2
Disconnect switch
Field supply
(Inter-unit)
(B)
power line
230/208V
(C)
Grounding
line
(B)
1
2
(A)
Fig. 25b
22
Grounding line
230/208V
2
Power supply
Single-phase 230/208VAC 60HZ
5
230/208V
1
L1
L2
230/208V
supply
UNIT C
4
(B)
INDOOR UNIT
Terminal
(B)
230/208V
1
3
3
INDOOR UNIT
Terminal
(B)
Field supply
UNIT A
2
INDOOR UNIT
Terminal
(C)
INDOOR UNIT
Terminal
* Disconnect
switch
(C)
Grounding
line
Grounding line
3
1
(A)
Power supply
Single-phase 230/208VAC 60HZ
2
230/208V
Terminal(9P)
L1
L2
INDOOR UNIT
Terminal
1
(B)
UNIT B
3
OUTDOOR UNIT
230/208V
2
* Disconnect
switch
(B)
230/208V
UNIT C
(A)
INDOOR UNIT
Terminal
Field supply
UNIT A
* Disconnect
switch
Field
* Disconnect
switch
UNIT B
3 indoor units with CM1972/CLM1972
1
NOTE
*
UNIT D
G
Be sure to connect the power supply line to the
outdoor unit as shown in the wiring diagram. The
indoor unit draws its power from the outdoor unit.
Do not run wiring for antenna, signal, or power
lines of television, radio, stereo, telephone, security system, or intercom any closer than 3'4" (1 m)
from the power cable and wires between the
indoor and outdoor units. Electrical noise may
affect the operation.
Terminal
(2P)
G
07-156 CM-CLM1972-3172
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9:35 AM
Page 23
5-4. How to Connect Wiring to the Terminal
WARNING
Loose wiring may cause the
terminal to overheat or result
in unit malfunction. A fire
hazard may also exist. Therefore, be sure all wiring is
tightly connected.
When connecting each power wire to the corresponding
terminal, follow the instructions “How to connect wiring
to the terminal” and fasten the wire securely tight with
the fixing screw of the terminal plate.
STRIP
SIZE
9/32"
(7 mm) (ACTUAL
SIZE)
How to connect wiring to the terminal
Fig. 26
a) For Indoor Unit
Strip 15/16" (25 mm)
(1) Cut the wire end with a cutting pliers, then strip the
insulation to expose the wire about 9/32" (7 mm).
See the label (Fig. 26) near the terminal plate.
(2) Using a screwdriver, loosen the terminal screw on
the terminal plate.
(3) Insert the wire and tighten the terminal screw completely using a screwdriver.
Solid wire
Loop
Insulation
Fig. 27
b) For Outdoor Unit
Strip 3/8" (10 mm)
I For solid core wiring (or F-cable)
(1) Cut the wire end with a cutting pliers, then strip the
insulation to expose the solid wire about 15/16" (25
mm). (Fig. 27)
(2) Using a screwdriver, remove the terminal screw(s)
on the terminal plate.
Stranded wire
Ring
connector
Fig. 28
(3) Using the pliers, bend the solid wire to form a loop
suitable for the terminal screw.
Twist wire ends
(4) Shape the loop wire properly, place it on the terminal plate and fix it securely with the removed terminal screw using a screwdriver.
I For stranded wiring
(1) Cut the wire end with a cutting pliers, then strip the
insulation to expose the stranded wiring about 3/8"
(10 mm) and tightly twist the wire ends. (Figs. 28
and 29)
Fig. 29
Special
washer
(2) Using a screwdriver, remove the terminal screw(s)
on the terminal plate.
Screw
Ring connector
(3) Using a ring connector fastener or pliers, securely
clamp each stripped wire end with a ring connector.
(Fig. 28)
Wire
(4) Place the ring connector wire, and replace and
tighten the removed terminal screw using a screwdriver. (Fig. 30)
Terminal plate
Wire
Fig. 30
23
Screw and
special washer
Ring
connector
07-156 CM-CLM1972-3172
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Page 24
5-5. Wiring Instructions for the Outdoor Unit
CAUTION
G
Be sure to correctly align inter-unit cables A, B, C and D.
Outdoor unit A
Terminal board
1
Indoor unit A
A is the indoor unit with
refrigerant tubing that is
connected to service valve 1 2 3
A (top) of the outdoor unit.
2
1 2 3 4 5 6 7 8 9 10 11 12
Power:
Single-phase,
230/208VAC 60HZ
Terminal board
Inter-unit cables
#14 (not provided)
Power switch
(not provided)
Label A
Indoor unit B
B is the indoor unit with
refrigerant tubing that is
connected to service valve 1 2 3
B (top) of the outdoor unit.
Power supply
(conduit)
A
Ground
Power cable (not provided)
(#12: Less than 85 ft.)
Terminal board
Inter-unit cables
#14 (not provided)
Label B
Indoor unit C
C is the indoor unit with
refrigerant tubing that is
connected to service valve 1 2 3
C (top) of the outdoor unit.
B
Be sure to perform grounding.
Attach a ground wire to either the
outdoor unit or indoor unit.
If there is a grounding terminal
inside the room, use the grounding
screw inside the indoor unit.
Terminal board
Inter-unit cables
#14 (not provided)
Label C
Indoor unit D
D is the indoor unit with
refrigerant tubing that is
connected to service valve 1 2 3
D (top) of the outdoor unit.
C
Terminal board
Label D
Be sure to apply the provided labels to both
ends of the inter-unit cables to prevent miswiring. The units will not function if the wiring
connections are incorrect.
Inter-unit cables
#14 (not provided)
D
# ... AWG (American Wire Gauge)
Inter Unit
(conduit)
Fig. 31
G
G
G
G
G
Use a dedicated A/C circuit for power.
To make connections to the outdoor unit, remove the
inspection panel and tubing panel.
Do not bring the inter-unit cables or power cable into
contact with tubing or service valves.
Use outdoor unit cable fasteners and fasten the interunit cables at the location where the cables are doublesheathed.
Arrange the wiring so that the inter-unit cables are contained in the inspection panel and tubing panel, as
shown in Fig. 31.
24
07-156 CM-CLM1972-3172
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9:35 AM
Page 25
Regulations on wire size differ from locality to locality. For
field wiring requirements, please refer to your local electrical codes. Make sure that the installation fully complies
with all local and national regulations.
Lock nut
Cabinet
(1) Remove access panel “C”. (Fig. 32)
(2) Connect the inter-unit and power supply line according to the drawing on the panel side.
Terminal
block
(3) Be sure to size each wire allowing approx. 4"
(10 cm) longer than the required length for wiring.
Store excess wiring inside the cabinet.
Conduit
plate
(4) When connections are completed, check that all connections are correct as shown in the wiring system
diagram on panel side.
(5) Be sure to ground the unit according to your local
codes.
Access panel “C”
Plug
6. Test Run
Inter unit
(Conduit)
Performing a test run
G
Refer to the test run procedures in the indoor unit
installation manual.
G
Perform the test run separately for each connected
indoor unit. If 2 units are operated simultaneously, it is
not possible to correctly check for errors in tubing and
wiring.
Power supply
(Conduit)
Fig. 32
Access panel C
Checking tubing and wiring
Perform the test run and check that operation is normal.
If there is an error in tubing or wiring, the refrigerant may
flow to indoor unit B when indoor unit A is operated (for
example).
Conduit plate
CAUTION
CAUTION
G
Stop operation immediately if there is an error in tubing
or wiring. Turn the power (breaker) to OFF, and check
whether the inter-unit cables are connected incorrectly,
or whether the narrow tubes A and B are connected in
reverse. Correct the connections.
G
If there is an error in tubing, pump-down must be performed. Be sure to perform pump-down. After making
corrections, again purge the air from the tubes.
Make sure there is no gap between
access panel “C” and the conduit plate.
Fig. 33
25
07-156 CM-CLM1972-3172
6/6/07
9:35 AM
Page 26
7. Connecting a Home Automation device
The HA (white) 4P terminal is located on the indoor unit PCB. If a HA device will be used,
connect it to this terminal.
8. Installation Check Sheet
The strength of the installation location is sufficient to support the A/C weight.
The indoor and outdoor units are installed level and vertically.
The power and voltage are as specified.
Inter-unit cables are securely fastened to the terminal board.
Inter-unit cables are securely fixed.
The power cord and inter-unit cables are not connected anywhere along their paths.
The ground wire is securely connected.
An air purge of the refrigerant circuit has been conducted.
A leak test of the tubing connections has been performed.
Thermal insulation has been applied to the tubing connections.
Drain connections are secure and water drains properly.
Putty has been used to close the hole in the wall.
All service valves are fully open.
Remote controller signals are being positively received.
26
APPENDIX B UNIT COMBINATION TABLES
< List of Combination Tables >
Name of Combination Table
Model No. of Outdoor Unit
Remarks
3-Room Outdoor Unit Combination Table
CM1972
OI-852-6-4180-818-00-4
4-Room Outdoor Unit Combination Table
CM2472
OI-852-6-4180-819-00-4
4-Room Outdoor Unit Combination Table
CM3172
OI-852-6-4180-820-00-4
NOTE
Be sure to operate the air conditioning system only when 2 or
more indoor units have been installed. If operated with only a
single unit installed, the returning fluid to the compressor may
cause a malfunction.
A-2
Save this Combination Table!
Please be sure to hand over this sheet to the user.
3-Room Outdoor Unit Combination Table
CM1972
<Combinations of Connectable Indoor Units>
The combinations of the indoor units listed in Table 1 and Table 2 are combinations solely of those units which can be
operated concurrently. In addition to the combinations listed in the table, other combinations of indoor units are possible
provided that the following conditions are satisfied.
Conditions:
1. At least two or more indoor units must be connected to the multi outdoor unit. It is not acceptable for only one indoor
unit to be connected.
2. The total rated cooling capacity of the indoor units to be connected must be no more than 200% of the rated cooling
capacity of the outdoor unit.
In this case, all the indoor units installed must not be operated concurrently under any
CAUTION circumstances. Otherwise, the air conditioner may not run properly and trouble may
occur.
Example: When 3 indoor units are connected
at 230V
If the following holds true
Rated cooling capacity of CM1972 outdoor unit: C=19700 (BTU/h)
Rated cooling capacity of indoor units: K1, K2, ... (BTU/h)
Then:
C x 2 (200%) K1 + K2 + .......
19700 x 2 7500 + 11900 + 17500
39400 36900
It is therefore possible to connect 3 units with respective capacities of 7500 + 11900 + 17500.
However, since this combination is not found in the 3-room operation column of Table 1, operating all these units concurrently
may result in trouble. At a time like this, shut down at least one of the 3 indoor units to match one of the combinations
found in the 2-room operation column of Table 1.
at 208V
If the following holds true
Rated cooling capacity of CM1972 outdoor unit: C=19700 (BTU/h)
Rated cooling capacity of indoor units: K1, K2, ... (BTU/h)
Then:
C x 2 (200%) K1 + K2 + .......
19700 x 2 7500 + 11900 + 17500
39400 36900
It is therefore possible to connect 3 units with respective capacities of 7500 + 11900 + 17500.
However, since this combination is not found in the 3-room operation column of Table 2, operating all these units concurrently
may result in trouble. At a time like this, shut down at least one of the 3 indoor units to match one of the combinations
found in the 2-room operation column of Table 2.
NOTE
Be sure to operate the air conditioning system only when 2 or more indoor units have been installed.
If operated with only a single unit installed, the returning fluid to the compressor may cause a malfunction.
Pub. OI-85264180818004
© SANYO 2008
< Combinations of operatable indoor units >
Voltage Rating : 230V 60Hz
CM1972
(Rated cooling capacity at 230V: 19700 BTU/h)
NOTE
7500 : KMS0772
9000 : KMS0972
11900 : KMS1272
17500 : KMS1872
Table 1
Indoor Unit Combination
Single-room
Operation
2-room
Operation
3-room
Operation
7500
9000
11900
17500
7500
7500
7500
7500
9000
9000
9000
11900
11900
7500
7500
7500
7500
7500
7500
7500
7500
9000
9000
9000
11900
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
7500
9000
11900
17500
9000
11900
17500
11900
17500
7500
7500
7500
7500
9000
9000
9000
11900
9000
9000
11900
11900
+
+
+
+
+
+
+
+
+
+
+
+
7500
9000
11900
17500
9000
11900
17500
11900
9000
11900
11900
11900
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
7500
9000
11900
17500
15000
16500
19400
25000
18000
20900
26500
23800
29400
22500
24000
26900
32500
25500
28400
34000
31300
27000
29900
32800
35700
Room
A
7500
9000
11900
17500
7500
7485
6716
5717
8500
7713
6659
9350
7971
6133
5835
5458
4538
5779
5190
4334
4711
6567
5932
5410
6567
Room
B
7500
9015
10684
13383
8500
10187
12941
9350
11729
6133
5835
5458
4538
6961
6252
5221
7495
6567
5932
7145
6567
Indoor Unit Capacity (BTU/h)
COOLING
Room
Total Performance
Capacity ( Min. - Max.
C
7500 ( 4700 - 8800
9000 ( 4700 - 10900
11900 ( 5100 - 12200
17500 ( 5400 - 19700
15000 ( 6800 - 17400
16500 ( 6800 - 19700
17400 ( 6800 - 19700
19100 ( 7100 - 19700
17000 ( 6800 - 19700
17900 ( 6800 - 19700
19600 ( 7100 - 19700
18700 ( 6800 - 19700
19700 ( 7100 - 19700
6133
18400 ( 8500 - 19700
7029
18700 ( 9800 - 19700
8684
19600 ( 9800 - 19700
10624
19700 ( 9800 - 19700
6961
19700 ( 9800 - 19700
8257
19700 ( 9800 - 19700
10146
19700 ( 9800 - 19700
7495
19700 ( 9800 - 19700
6567
19700 ( 9800 - 19700
7835
19700 ( 9800 - 19700
7145
19700 ( 9800 - 19700
6567
19700 ( 9800 - 19700
The table lists the wall-mounted type of indoor units as representative models.
-2-
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Voltage Rating : 208V 60Hz
CM1972
(Rated cooling capacity at 208V: 19700 BTU/h)
NOTE
7500 : KMS0772
9000 : KMS0972
11900 : KMS1272
17500 : KMS1872
Table 2
Indoor Unit Combination
Single-room
Operation
2-room
Operation
3-room
Operation
7500
9000
11900
17500
7500
7500
7500
7500
9000
9000
9000
11900
11900
7500
7500
7500
7500
7500
7500
7500
7500
9000
9000
9000
11900
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
7500
9000
11900
17500
9000
11900
17500
11900
17500
7500
7500
7500
7500
9000
9000
9000
11900
9000
9000
11900
11900
+
+
+
+
+
+
+
+
+
+
+
+
7500
9000
11900
17500
9000
11900
17500
11900
9000
11900
11900
11900
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
7500
9000
11900
17500
15000
16500
19400
25000
18000
20900
26500
23800
29400
22500
24000
26900
32500
25500
28400
34000
31300
27000
29900
32800
35700
Room
A
7500
9000
11900
17500
7500
7485
6716
5717
8500
7713
6659
9350
7971
6133
5835
5458
4538
5779
5190
4334
4711
6567
5932
5410
6567
Room
B
7500
9015
10684
13383
8500
10187
12941
9350
11729
6133
5835
5458
4538
6961
6252
5221
7495
6567
5932
7145
6567
Indoor Unit Capacity (BTU/h)
COOLING
Room
Total Performance
Capacity ( Min. - Max.
C
7500 ( 4700 - 8800
9000 ( 4700 - 10900
11900 ( 5100 - 12200
17500 ( 5400 - 19700
15000 ( 6800 - 17400
16500 ( 6800 - 19700
17400 ( 6800 - 19700
19100 ( 7100 - 19700
17000 ( 6800 - 19700
17900 ( 6800 - 19700
19600 ( 7100 - 19700
18700 ( 6800 - 19700
19700 ( 7100 - 19700
6133
18400 ( 8500 - 19700
7029
18700 ( 9800 - 19700
8684
19600 ( 9800 - 19700
10624
19700 ( 9800 - 19700
6961
19700 ( 9800 - 19700
8257
19700 ( 9800 - 19700
10146
19700 ( 9800 - 19700
7495
19700 ( 9800 - 19700
6567
19700 ( 9800 - 19700
7835
19700 ( 9800 - 19700
7145
19700 ( 9800 - 19700
6567
19700 ( 9800 - 19700
The table lists the wall-mounted type of indoor units as representative models.
-3-
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)
Save this Combination Table!
Please be sure to hand over this sheet to the user.
4-Room Outdoor Unit Combination Table
CM2472
<Combinations of Connectable Indoor Units>
The combinations of the indoor units listed in Table 1 and Table 2 are combinations solely of those units which can be
operated concurrently. In addition to the combinations listed in the table, other combinations of indoor units are possible
provided that the following conditions are satisfied.
Conditions:
1. At least two or more indoor units must be connected to the multi outdoor unit. It is not acceptable for only one indoor
unit to be connected.
2. The total rated cooling capacity of the indoor units to be connected must be no more than 200% of the rated cooling
capacity of the outdoor unit.
In this case, all the indoor units installed must not be operated concurrently under any
CAUTION circumstances. Otherwise, the air conditioner may not run properly and trouble may
occur.
Example: When 4 indoor units are connected
at 230V
If the following holds true
Rated cooling capacity of CM2472 outdoor unit: C=25400 (BTU/h)
Rated cooling capacity of indoor units: K1, K2, ... (BTU/h)
Then:
C x 2 (200%) K1 + K2 + .......
25400 x 2 7500 + 7500 + 7500 + 17500
50800 40000
It is therefore possible to connect 4 units with respective capacities of 7500 + 7500 + 7500 + 17500.
However, since this combination is not found in the 4-room operation column of Table 1, operating all these units concurrently
may result in trouble. At a time like this, shut down at least one of the 4 indoor units to match one of the combinations
found in the 3-room operation column of Table 1.
at 208V
If the following holds true
Rated cooling capacity of CM2472 outdoor unit: C=24400 (BTU/h)
Rated cooling capacity of indoor units: K1, K2, ... (BTU/h)
Then:
C x 2 (200%) K1 + K2 + .......
24400 x 2 7500 + 7500 + 7500 + 17500
48800 40000
It is therefore possible to connect 4 units with respective capacities of 7500 + 7500 + 7500 + 17500.
However, since this combination is not found in the 4-room operation column of Table 2, operating all these units concurrently
may result in trouble. At a time like this, shut down at least one of the 4 indoor units to match one of the combinations
found in the 3-room operation column of Table 2.
NOTE
Be sure to operate the air conditioning system only when 2 or more indoor units have been installed.
If operated with only a single unit installed, the returning fluid to the compressor may cause a malfunction.
Pub. OI-85264180819004
© SANYO 2008
< Combinations of operatable indoor units >
Voltage Rating : 230V 60Hz
CM2472
(Rated cooling capacity at 230V: 25400 BTU/h)
NOTE
7500 : KMS0772
9000 : KMS0972
11900 : KMS1272
17500 : KMS1872
24200 : KMS2472
Table 1
Indoor Unit Combination
Single-room
Operation
2-room
Operation
3-room
Operation
7500
9000
11900
17500
24200
7500
7500
7500
7500
7500
9000
9000
9000
9000
11900
11900
11900
17500
7500
7500
7500
7500
7500
7500
7500
7500
7500
9000
9000
9000
9000
9000
11900
11900
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
7500
9000
11900
17500
24200
9000
11900
17500
24200
11900
17500
24200
17500
7500
7500
7500
7500
9000
9000
9000
11900
11900
9000
9000
9000
11900
11900
11900
11900
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
7500
9000
11900
17500
9000
11900
17500
11900
17500
9000
11900
17500
11900
17500
11900
17500
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
7500
9000
11900
17500
24200
15000
16500
19400
25000
31700
18000
20900
26500
33200
23800
29400
36100
35000
22500
24000
26900
32500
25500
28400
34000
31300
36900
27000
29900
35500
32800
38400
35700
41300
Room
A
7500
9000
11900
17500
23200
7500
7485
7488
7124
6009
9000
8876
8494
6904
11400
10277
8387
12700
7333
7177
7073
5851
7099
6692
5588
6074
5150
8467
7649
6441
6975
5957
8467
7317
Room
B
7500
9015
11912
16676
19391
9000
11724
16506
18496
11400
15123
17013
12700
7333
7177
7073
5851
8551
8061
6731
9663
8194
8467
7649
6441
9212
7867
8467
7317
Indoor Unit Capacity (BTU/h)
COOLING
Total Performance
Room Room
C
D
Capacity
( Min. - Max.
7500 ( 4700 - 8800
9000 ( 4700 - 10900
11900 ( 5100 - 12200
17500 ( 5400 - 19700
23200 ( 5400 - 23200
15000 ( 6800 - 17400
16500 ( 6800 - 19700
19400 ( 6800 - 22800
23800 ( 7100 - 25200
25400 ( 7100 - 25400
18000 ( 6800 - 21400
20600 ( 6800 - 23200
25000 ( 7100 - 25400
25400 ( 7100 - 25400
22800 ( 6800 - 24800
25400 ( 7100 - 25400
25400 ( 7100 - 25400
25400 ( 7100 - 25400
7333
22000 ( 8500 - 25400
8645
23000 ( 9800 - 25400
11253
25400 ( 9800 - 25400
13697
25400 ( 9800 - 25400
8551
24200 ( 9800 - 25400
10647
25400 ( 9800 - 25400
13081
25400 ( 9800 - 25400
9663
25400 ( 9800 - 25400
12056
25400 ( 9800 - 25400
8467
25400 ( 9800 - 25400
10102
25400 ( 9800 - 25400
12518
25400 ( 9800 - 25400
9212
25400 ( 9800 - 25400
11576
25400 ( 9800 - 25400
8467
25400 ( 9800 - 25400
10766
25400 ( 9800 - 25400
IMPORTANT! (Concurrent operation of 4 indoor units prohibited)
4-room
Operation
This multi outdoor unit allows up to four indoor units to be connected.
However, all four indoor units must not be operated concurrently.
Otherwise, the air conditioner may not run properly.
Up to three indoor units may be operated concurrently.
The table lists the wall-mounted type of indoor units as representative models.
-2-
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
)
Voltage Rating : 208V 60Hz
CM2472
(Rated cooling capacity at 208V: 24400 BTU/h)
NOTE
7500 : KMS0772
9000 : KMS0972
11900 : KMS1272
17500 : KMS1872
24200 : KMS2472
Table 2
Indoor Unit Combination
Single-room
Operation
2-room
Operation
3-room
Operation
7500
9000
11900
17500
24200
7500
7500
7500
7500
7500
9000
9000
9000
9000
11900
11900
11900
17500
7500
7500
7500
7500
7500
7500
7500
7500
7500
9000
9000
9000
9000
9000
11900
11900
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
7500
9000
11900
17500
24200
9000
11900
17500
24200
11900
17500
24200
17500
7500
7500
7500
7500
9000
9000
9000
11900
11900
9000
9000
9000
11900
11900
11900
11900
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
7500
9000
11900
17500
9000
11900
17500
11900
17500
9000
11900
17500
11900
17500
11900
17500
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
7500
9000
11900
17500
24200
15000
16500
19400
25000
31700
18000
20900
26500
33200
23800
29400
36100
35000
22500
24000
26900
32500
25500
28400
34000
31300
36900
27000
29900
35500
32800
38400
35700
41300
Room
A
7500
9000
11900
17500
22400
7500
7485
7488
7124
5772
9000
8876
8290
6632
11400
9873
8057
12200
7333
7177
6739
5575
7099
6429
5368
5835
4947
8133
7348
6188
6701
5722
8133
7029
Room
B
7500
9015
11912
16676
18628
9000
11724
16110
17768
11400
14527
16343
12200
7333
7177
6739
5575
8551
7744
6466
9283
7871
8133
7348
6188
8850
7558
8133
7029
Indoor Unit Capacity (BTU/h)
COOLING
Total Performance
Room Room
C
D
Capacity ( Min. - Max.
7500 ( 4700 - 8800
9000 ( 4700 - 10900
11900 ( 5100 - 12200
17500 ( 5400 - 19700
22400 ( 5400 - 22400
15000 ( 6800 - 17400
16500 ( 6800 - 19700
19400 ( 6800 - 22800
23800 ( 7100 - 24200
24400 ( 7100 - 24400
18000 ( 6800 - 21400
20600 ( 6800 - 23200
24400 ( 7100 - 24400
24400 ( 7100 - 24400
22800 ( 6800 - 23200
24400 ( 7100 - 24400
24400 ( 7100 - 24400
24400 ( 7100 - 24400
7333
22000 ( 8500 - 24200
8645
23000 ( 9800 - 24200
10722
24200 ( 9800 - 24400
13050
24200 ( 9800 - 24400
8551
24200 ( 9800 - 24200
10228
24400 ( 9800 - 24400
12566
24400 ( 9800 - 24400
9283
24400 ( 9800 - 24400
11582
24400 ( 9800 - 24400
8133
24400 ( 9800 - 24400
9705
24400 ( 9800 - 24400
12025
24400 ( 9800 - 24400
8850
24400 ( 9800 - 24400
11120
24400 ( 9800 - 24400
8133
24400 ( 9800 - 24400
10342
24400 ( 9800 - 24400
IMPORTANT! (Concurrent operation of 4 indoor units prohibited)
4-room
Operation
This multi outdoor unit allows up to four indoor units to be connected.
However, all four indoor units must not be operated concurrently.
Otherwise, the air conditioner may not run properly.
Up to three indoor units may be operated concurrently.
The table lists the wall-mounted type of indoor units as representative models.
-3-
)
)
)
)
)
)
)
)
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Save this Combination Table!
Please be sure to hand over this sheet to the user.
4-Room Outdoor Unit Combination Table
CM3172
<Combinations of Connectable Indoor Units>
The combinations of the indoor units listed in Table 1 and Table 2 are combinations solely of those units which can be
operated concurrently. In addition to the combinations listed in the table, other combinations of indoor units are possible
provided that the following conditions are satisfied.
Conditions:
1. At least two or more indoor units must be connected to the multi outdoor unit. It is not acceptable for only one indoor
unit to be connected.
2. The total rated cooling capacity of the indoor units to be connected must be no more than 200% of the rated cooling
capacity of the outdoor unit.
In this case, all the indoor units installed must not be operated concurrently under any
CAUTION circumstances. Otherwise, the air conditioner may not run properly and trouble may
occur.
Example: When 4 indoor units are connected
at 230V
If the following holds true
Rated cooling capacity of CM3172 outdoor unit: C=30600 (BTU/h)
Rated cooling capacity of indoor units: K1, K2, ... (BTU/h)
Then:
C x 2 (200%) K1 + K2 + .......
30600 x 2 7500 + 7500 + 11900 + 24200
61200 51100
It is therefore possible to connect 4 units with respective capacities of 7500 + 7500 + 11900 + 24200.
However, since this combination is not found in the 4-room operation column of Table 1, operating all these units concurrently
may result in trouble. At a time like this, shut down at least one of the 4 indoor units to match one of the combinations
found in the 3-room operation column of Table 1.
at 208V
If the following holds true
Rated cooling capacity of CM3172 outdoor unit: C=28600 (BTU/h)
Rated cooling capacity of indoor units: K1, K2, ... (BTU/h)
Then:
C x 2 (200%) K1 + K2 + .......
28600 x 2 7500 + 7500 + 11900 + 24200
57200 51100
It is therefore possible to connect 4 units with respective capacities of 7500 + 7500 + 11900 + 24200.
However, since this combination is not found in the 4-room operation column of Table 2, operating all these units concurrently
may result in trouble. At a time like this, shut down at least one of the 4 indoor units to match one of the combinations
found in the 3-room operation column of Table 2.
NOTE
Be sure to operate the air conditioning system only when 2 or more indoor units have been installed.
If operated with only a single unit installed, the returning fluid to the compressor may cause a malfunction.
Pub. OI-85264180820004
© SANYO 2008
< Combinations of operatable indoor units >
Voltage Rating : 230V 60Hz
NOTE
CM3172
(Rated cooling capacity at 230V: 30600 BTU/h)
7500 : KMS0772
9000 : KMS0972
11900 : KMS1272
17500 : KMS1872
24200 : KMS2472
Table 1
Indoor Unit Combination
Single-room
Operation
2-room
Operation
3-room
Operation
4-room
Operation
7500
9000
11900
17500
24200
7500
7500
7500
7500
7500
9000
9000
9000
9000
11900
11900
11900
17500
17500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
9000
9000
9000
9000
9000
9000
9000
9000
11900
11900
11900
11900
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
9000
9000
9000
9000
9000
9000
11900
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
7500
9000
11900
17500
24200
9000
11900
17500
24200
11900
17500
24200
17500
24200
7500
7500
7500
7500
7500
9000
9000
9000
9000
11900
11900
11900
17500
17500
9000
9000
9000
9000
11900
11900
11900
17500
11900
11900
11900
17500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
9000
9000
9000
9000
9000
11900
11900
9000
9000
9000
9000
9000
11900
11900
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
7500
9000
11900
17500
24200
9000
11900
17500
24200
11900
17500
24200
17500
24200
9000
11900
17500
24200
11900
17500
24200
17500
11900
17500
24200
17500
7500
7500
7500
7500
7500
9000
9000
9000
9000
11900
11900
17500
9000
9000
9000
11900
11900
11900
11900
9000
9000
9000
11900
11900
11900
11900
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
7500
9000
11900
17500
24200
9000
11900
17500
24200
11900
17500
17500
9000
11900
17500
11900
17500
11900
17500
9000
11900
17500
11900
17500
11900
11900
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
7500
9000
11900
17500
24200
15000
16500
19400
25000
31700
18000
20900
26500
33200
23800
29400
36100
35000
41700
22500
24000
26900
32500
39200
25500
28400
34000
40700
31300
36900
43600
42500
49200
27000
29900
35500
42200
32800
38400
45100
44000
35700
41300
48000
46900
30000
31500
34400
40000
46700
33000
35900
41500
48200
38800
44400
50000
34500
37400
43000
40300
45900
43200
48800
36000
38900
44500
41800
47400
44700
47600
Room
A
7500
9000
11900
17500
24200
7500
7500
7500
7320
6625
9000
8957
8626
7861
11900
10848
9625
14500
12296
7467
7500
7082
6600
5587
7294
6972
6309
5381
6613
5935
5023
5153
4451
8533
8187
7352
6185
7848
6844
5827
5973
9267
8414
7239
7409
6800
6667
6235
5738
4914
6409
6058
5530
4761
5915
5169
4590
6217
6136
5337
5695
5000
5313
4703
7650
7080
6189
6589
5810
6161
7650
Room
B
7500
9000
11900
17080
21375
9000
11843
16774
21139
11900
15952
19575
14500
17004
7467
7500
7082
6600
5587
8753
8366
7571
6457
10493
9417
7970
12024
10386
8533
8187
7352
6185
10376
9049
7705
11614
9267
8414
7239
10896
6800
6667
6235
5738
4914
6409
6058
5530
4761
5915
5169
4590
7461
7364
6405
6834
6000
8429
7462
7650
7080
6189
6589
5810
8146
7650
Indoor Unit Capacity (BTU/h)
COOLING
Total Performance
Room Room
C
D
Capacity ( Min. - Max.
7500 ( 4000 - 8800
9000 ( 4400 - 10900
11900 ( 4700 - 12200
17500 ( 5100 - 19700
24200 ( 5400 - 25200
15000 ( 4400 - 17400
16500 ( 5100 - 19700
19400 ( 5800 - 22800
24400 ( 7500 - 26200
28000 ( 7800 - 30000
18000 ( 5800 - 22000
20800 ( 6400 - 25200
25400 ( 7800 - 29000
29000 ( 7800 - 30000
23800 ( 7500 - 28600
26800 ( 8800 - 30000
29200 ( 8800 - 30000
29000 ( 8800 - 30000
29300 ( 9200 - 30000
7467
22400 ( 6800 - 26200
9000
24000 ( 7500 - 26600
11236
25400 ( 8100 - 26800
15400
28600 ( 9200 - 30600
18027
29200 ( 9800 - 30600
8753
24800 ( 7800 - 27200
11062
26400 ( 8800 - 27600
14721
28600 ( 9800 - 30600
17362
29200 ( 9800 - 30600
10493
27600 ( 9200 - 28600
13848
29200 ( 9800 - 30600
16207
29200 ( 9800 - 30600
12024
29200 ( 9800 - 30600
14363
29200 ( 9800 - 30600
8533
25600 ( 8500 - 27200
10825
27200 ( 9200 - 28200
14296
29000 ( 9800 - 30600
16630
29000 ( 9800 - 30600
10376
28600 ( 9200 - 29200
13307
29200 ( 9800 - 30600
15668
29200 ( 9800 - 30600
11614
29200 ( 9800 - 30600
9267
27800 ( 9800 - 29000
12373
29200 ( 9800 - 30600
14722
29200 ( 9800 - 30600
10896
29200 ( 9800 - 30600
6800
6800
27200 ( 9800 - 28200
6667
8000
28000 ( 9800 - 28200
6235
9894
28600 ( 9800 - 28600
5738 13388
30600 ( 9800 - 30600
4914 15857
30600 ( 9800 - 30600
7691
7691
28200 ( 9800 - 28200
7270
9613
29000 ( 9800 - 29000
6636 12904
30600 ( 9800 - 30600
5714 15363
30600 ( 9800 - 30600
9385
9385
30600 ( 9800 - 30600
8201 12061
30600 ( 9800 - 30600
10710 10710
30600 ( 9800 - 30600
7461
7461
28600 ( 9800 - 28600
7364
9736
30600 ( 9800 - 30600
6405 12453
30600 ( 9800 - 30600
9036
9036
30600 ( 9800 - 30600
7933 11667
30600 ( 9800 - 30600
8429
8429
30600 ( 9800 - 30600
7462 10973
30600 ( 9800 - 30600
7650
7650
30600 ( 9800 - 30600
7080
9361
30600 ( 9800 - 30600
6189 12034
30600 ( 9800 - 30600
8711
8711
30600 ( 9800 - 30600
7682 11297
30600 ( 9800 - 30600
8146
8146
30600 ( 9800 - 30600
7650
7650
30600 ( 9800 - 30600
The table lists the wall-mounted type of indoor units as representative models.
-2-
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Voltage Rating : 208V 60Hz
CM3172
(Rated cooling capacity at 208V: 28600 BTU/h)
NOTE
7500 : KMS0772
9000 : KMS0972
11900 : KMS1272
17500 : KMS1872
24200 : KMS2472
Table 2
Indoor Unit Combination
Single-room
Operation
2-room
Operation
3-room
Operation
4-room
Operation
7500
9000
11900
17500
24200
7500
7500
7500
7500
7500
9000
9000
9000
9000
11900
11900
11900
17500
17500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
9000
9000
9000
9000
9000
9000
9000
9000
11900
11900
11900
11900
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
9000
9000
9000
9000
9000
9000
11900
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
7500
9000
11900
17500
24200
9000
11900
17500
24200
11900
17500
24200
17500
24200
7500
7500
7500
7500
7500
9000
9000
9000
9000
11900
11900
11900
17500
17500
9000
9000
9000
9000
11900
11900
11900
17500
11900
11900
11900
17500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
7500
9000
9000
9000
9000
9000
11900
11900
9000
9000
9000
9000
9000
11900
11900
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
7500
9000
11900
17500
24200
9000
11900
17500
24200
11900
17500
24200
17500
24200
9000
11900
17500
24200
11900
17500
24200
17500
11900
17500
24200
17500
7500
7500
7500
7500
7500
9000
9000
9000
9000
11900
11900
17500
9000
9000
9000
11900
11900
11900
11900
9000
9000
9000
11900
11900
11900
11900
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
+
7500
9000
11900
17500
24200
9000
11900
17500
24200
11900
17500
17500
9000
11900
17500
11900
17500
11900
17500
9000
11900
17500
11900
17500
11900
11900
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
=
7500
9000
11900
17500
24200
15000
16500
19400
25000
31700
18000
20900
26500
33200
23800
29400
36100
35000
41700
22500
24000
26900
32500
39200
25500
28400
34000
40700
31300
36900
43600
42500
49200
27000
29900
35500
42200
32800
38400
45100
44000
35700
41300
48000
46900
30000
31500
34400
40000
46700
33000
35900
41500
48200
38800
44400
50000
34500
37400
43000
40300
45900
43200
48800
36000
38900
44500
41800
47400
44700
47600
Room
A
7500
9000
11900
17500
24200
7500
7500
7500
7320
6625
9000
8957
8626
7373
11900
10848
9098
13600
11583
7467
7500
6747
6185
5281
7118
6444
5912
5086
5799
5610
4748
4871
4207
8267
7284
6439
5886
6805
6469
5508
5645
8467
7953
6843
7003
6300
6048
5625
5363
4593
5864
5557
5169
4450
5528
4831
4290
5696
5735
4988
5323
4673
4965
4395
7150
6617
5784
6158
5430
5758
7150
Room
B
7500
9000
11900
17080
21375
9000
11843
16774
19827
11900
15952
18502
13600
16017
7467
7500
6747
6185
5281
8541
7732
7094
6103
9201
8901
7533
11365
9817
8267
7284
6439
5886
8998
8553
7282
10977
8467
7953
6843
10299
6300
6048
5625
5363
4593
5864
5557
5169
4450
5528
4831
4290
6835
6882
5986
6387
5608
7878
6974
7150
6617
5784
6158
5430
7614
7150
Indoor Unit Capacity (BTU/h)
COOLING
Total Performance
Room Room
C
D
Capacity ( Min. - Max.
7500 ( 4000 - 8800
9000 ( 4400 - 10900
11900 ( 4700 - 12200
17500 ( 5100 - 19700
24200 ( 5400 - 24800
15000 ( 4400 - 17400
16500 ( 5100 - 19700
19400 ( 5800 - 22800
24400 ( 7500 - 26200
28000 ( 7800 - 27600
18000 ( 5800 - 22000
20800 ( 6400 - 25200
25400 ( 7800 - 27600
27200 ( 7800 - 27600
23800 ( 7500 - 27600
26800 ( 8800 - 27600
27600 ( 8800 - 27600
27200 ( 8800 - 27600
27600 ( 9200 - 27600
7467
22400 ( 6800 - 24800
9000
24000 ( 7500 - 25200
10706
24200 ( 8100 - 25400
14431
26800 ( 9200 - 27600
17039
27600 ( 9800 - 27600
8541
24200 ( 7800 - 25400
10224
24400 ( 8800 - 25800
13794
26800 ( 9800 - 27600
16411
27600 ( 9800 - 27600
9201
24200 ( 9200 - 27600
13089
27600 ( 9800 - 27600
15319
27600 ( 9800 - 27600
11365
27600 ( 9800 - 27600
13576
27600 ( 9800 - 27600
8267
24800 ( 8500 - 26200
9631
24200 ( 9200 - 25400
12521
25400 ( 9800 - 27600
15827
27600 ( 9800 - 27600
8998
24800 ( 9200 - 26200
12578
27600 ( 9800 - 27600
14810
27600 ( 9800 - 27600
10977
27600 ( 9800 - 27600
8467
25400 ( 9800 - 27600
11695
27600 ( 9800 - 27600
13915
27600 ( 9800 - 27600
10299
27600 ( 9800 - 27600
6300
6300
25200 ( 9800 - 25200
6048
7257
25400 ( 9800 - 25400
5625
8925
25800 ( 9800 - 25800
5363 12513
28600 ( 9800 - 28600
4593 14821
28600 ( 9800 - 28600
7036
7036
25800 ( 9800 - 25800
6669
8817
26600 ( 9800 - 26600
6202 12060
28600 ( 9800 - 28600
5340 14359
28600 ( 9800 - 28600
8772
8772
28600 ( 9800 - 28600
7665 11273
28600 ( 9800 - 28600
10010 10010
28600 ( 9800 - 28600
6835
6835
26200 ( 9800 - 26200
6882
9100
28600 ( 9800 - 28600
5986 11640
28600 ( 9800 - 28600
8445
8445
28600 ( 9800 - 28600
7415 10904
28600 ( 9800 - 28600
7878
7878
28600 ( 9800 - 28600
6974 10256
28600 ( 9800 - 28600
7150
7150
28600 ( 9800 - 28600
6617
8749
28600 ( 9800 - 28600
5784 11247
28600 ( 9800 - 28600
8142
8142
28600 ( 9800 - 28600
7180 10559
28600 ( 9800 - 28600
7614
7614
28600 ( 9800 - 28600
7150
7150
28600 ( 9800 - 28600
The table lists the wall-mounted type of indoor units as representative models.
-3-
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SANYO Commercial Solutions
A Division of SANYO North America Corporation
1300 Michael Drive, Suite A
Wood Dale, IL 60191, U.S.A.
Sanyo Canada Inc.
1-300 Applewood Crescent, Concord, Ontario L4K 5C7, CANADA
Oct. / 2008 (T)